Which statement best helps to explain the observation that nh3. PH3 forms stronger dipole-dipole interactions than NH3. Which of the diagrams above could best help explain the low yield of the reaction under these conditions, and why? C. The C-F bond is more polar than the C-H bond c. Which statement best helps to explain the observation that NH3 (l) boils at -28ºC, wheras PH3 (l) boils at -126ºC? a) The dispersion forces in NH3 are weaker than the dispersion forces in PH3 Which statement best helps to explain the observation that NH3 (l)NH3 ( ) boils at −28°C−28°C, whereas PH3 (l)PH3 ( ) boils at −126°C−126°C? NH3NH3 has hydrogen bonding that is stronger than the dipole-dipole forces in PH3PH3. Which of the following statements best helps explain this observation?, Thymine and adenine form a base pair in the DNA molecule. Diagram 2, because it represents a reaction with a high activation energy barrier for molecules to overcome and a very slow reaction rate, even if it is thermodynamically favorable with ΔG°<0. Which of the following statements best explains these observations? At the higher temperature water dissociates more, [H3O+]= [OH−] [H3O+]= [OH−], and the water remains neutral. Which of the following best helps to explain the observation? a. CH2F2 (l), Which of the following best helps explain why an increase in temperature increases the rate of a chemical reaction? a. The ionic compounds NaCl and MgS are represented by the diagrams above. Which of the following best helps explain why the pressure of a sample of CH4 (g) (molar mass 16g/. 2 Properties of Solids based on IMF forces Day Quiz 5. 4-trifluoropentane D. Which statement best helps to explain the observation that water boils at 100~^ext {o}C, whereas a 1~ext {molal} aqueous solution of NaCl boils at a higher temperature? Nov 12, 2023 · The boiling point of PH3 is lower than that of NH3 due to the difference in their intermolecular forces. Frequency of collisions of reactant particles II. which statement best helps to explain the observation that NH3 (l) boils at --28 degrees C, whereas PH3 (l) boils at --126 degrees C? Which statement best helps to explain the observation that NH3 (l) boils at -28ºC, whereas PH3 (l) boils at -126ºC? a) The dispersion forces in NH3 are weaker than the dispersion forces in PH3 b) The dispersion forces in NH3 are stronger than the dipole-dipole forced in PH3 Study with Quizlet and memorize flashcards containing terms like Which statement best helps to explain the observation that NH3(l) boils at −28°C, whereas PH3(l) boils at −126°C, The ionic compounds NaCl and MgS are represented by the diagrams above. NH3 (22) If P (N2O4) is 1. PH3 forms dispersion forces, and NH3 does not. The C−F bond is more polar than the C−H bond c. the dispersion forces in NH3 are stronger than the dipole-dipole forces in PH3. Which of the following best helps to explain this observation 10. Which of the following best helps to explain the observation? The concentration of ions in a saturated solution of an ionic solid at a given temperature is constant. The hexane formed a separate layer on top of this solution. They determine correctness for specific contradictory examples. C NH3 has hydrogen bonding that is stronger Which statement best helps to explain the observation that NHS (1) boils at -28°C, whereas PH, (1) boils at -126*C? The dispersion forces in NH3 are weaker than the dispersion forces in PHS. 2 Practice Problems - Part 3 8 hich statement best helps to explain the observation that NH W 3 (l boils at -28°C , hereas PHw Study with Quizlet and memorize flashcards containing terms like In which of the following liquids do the intermolecular forces include dipole-dipole forces? a. 2,3,4 ChatGPT helps you get answers, find inspiration and be more productive. The structure of one form of boron nitride is represented above. May 22, 2024 · Explain the observations that NH3 isa weak Bronsted base in water whereas NF3 shows no signs of basicity. The C-F bond is more polar than the C-H bond. 10 M aqueous solution of sodium sulfate, Na2SO4, is a better conductor of electricity than a 0. Study with Quizlet and memorize flashcards containing terms like Electronegativity is, A polar covalent bond between two atoms results from, Which of the following statements helps to explain why water molecules form hydrogen bonds? and more. The carbon chains are farther apart in a sample of nonane than they are in 2,3,4-trifluoropentane NH3 has hydrogen bonding that is stronger than the dipole-dipole forces in PH3. To understand why NH₃ (ammonia) boils at -28°C while PH₃ (phosphine) boils at -126°C, we need to consider the types of intermolecular forces present in these compounds. B because completely dissociates in water to produce ions. This difference in boiling points is mainly due to the presence of hydrogen bonds in NH₃, which are a type of strong dipole-dipole interaction that occurs when a hydrogen atom is bonded to a highly Which of the following statements best helps explain this observation? A. The C-F bond is easier to break than the C-H bond b. " "The ion exchange of hydrogen and potassium is Which of the following statements best helps explain why diamond is much harder than graphite? C- Carbon atoms in diamond have four covalent bonds, whereas graphite is made of layers that are held together by relatively weak dispersion forces. Crowded fields lead to higher plant stress and greater susceptibility to infection B. ? Anonymous ∙ 16y ago. In effect, replacing the two-H’s in water with two-Cl atoms lowers the boiling point by about 100 °C. Which statement best helps to explain the observation thatboils at, whereasboils at ? (A)The dispersion forces inare weaker than the dispersion forces in. 0atm. Jan 27, 2023 · Which of the following best helps explain why the pressure of a sample of CH4 (g) (molar mass 16 g/mol) is closer to the pressure predicted by the ideal gas law than a sample of NH3 (g) (molar mass 17 g/mol)? Vertebrate immune responses involve communication over short and long distances. C: NH3NH3 has hydrogen bonding that is stronger than the dipole-dipole forces in PH3 PH3. Acetylcholinesterase (AChE) is a protein that catalyzes the conversion of acetylcholine to acetate and choline. Study with Quizlet and memorize flashcards containing terms like While reviewing the laboratory data of a patient with respiratory acidosis, the nurse notes an elevated potassium level. Which statement best helps to explain the observation that N H 3 (l) boils at - 2 8 ° C, whereas P H 3 (l) boils at - 1 2 6 ° C ? The dispersion forces in N H 3 are weaker than the dispersion forces in P H 3. The carbon chains are longer in nonane than they are in 2,3,4-trifluoropentane d. 3. The C-F is easier to break than the C-H bond. mL at 1. C The carbon chains are longer in nonane than they are in 2. D. The CโF bond is easier to break than the CโH bond. Study with Quizlet and memorize flashcards containing terms like The geometry of the SO3 molecule is best described as, Which of the following scientific claims about the bond in the molecular compound HF is most likely to be true?, The table above shows the first ionization energy and atomic radius of several elements. b. The ionic compounds NaCl and MgS are represented by the diagrams Feb 24, 2023 · The primary reason for the boiling point difference between NH3 and PH3 is that NH3 forms hydrogen bonds due to the presence of nitrogen, while PH3 does not. B The dispersion forces in NH3NH3 are stronger than the dipole-dipole forces in Which statement best helps to explain the observation that NH3 (l) boils at −28°C, whereas PH3 (l) boils at −126°C? C) NH3 has hydrogen bonding that is stronger than the dipole-dipole forces in PH3. NH3 has stronger intermolecular forces than PH3 because of hydrogen bonding. B The dispersion forces in NH3 are stronger than the dipole-dipole forces in PHz. Which of the following best helps explain why an increase in temperature increases the rate of a chemical reaction? At higher temperatures, high-energy collisions happen more frequently. Which statement best helps to explain the observation that N H 3 (I) boils at - 2 8 C , where as P H 3 (I) boils at - 1 2 6 C ? N H 3 has hydrogen bonding that is weaker than the dipole - dipole forces in P H 3. Their particles are more flexible than the particles of the other states. C. mol) is closer to the pressure predicted by the ideal gas law than a sample of NH3 (g) (molar mass 17g/mol) ? Which of the following statements best helps explain why diamond is much harder than graphite? Carbon atoms in diamond have four covalent bonds, whereas graphite is made of layers that are held together by relatively weak dispersion forces. Which of the following statements best helps to explain why the contents of the tube containing the equilibrium mixture turned a lighter color when the tube was placed into an ice bath. They identify orderly relationships. Solution Of the three solutions listed in the table above, which one, if any, has the greatest electrical conductivity and why? A because its molecules have the most atoms. Which of the following identifies the solute particle and best helps explain how the solute particle interacts with water molecules? A The particle is a negative ion, and the interactions are hydrogen bonds. Account for the differences in the boiling points of the substances. Which of the following observations provides the best evidence that the proposal is incorrect? and more. Which of the following best helps explain this deviation? A The C 2 H 6 (g) molecules have more hydrogen bonding than C H 4 (g) molecules do. PH3 forms weaker dispersion forces than NH3. Which explanation by the nurse describes the renal regulatory mechanism of hydrogen to help prevent acidosis from developing?, The nurse reviews respiratory acidosis with a colleague. Nonane is more polar than 2,3,4-trifluoropentane. Explain this observation, making specific comments about H Which of the following statements best helps explain why diamond is much harder than graphite? C) Carbon atoms in diamond have four covalent bonds, whereas graphite is made of layers that are held together by relatively weak dispersion forces. The correct answer is c) London Dispersion Forces are weaker in PH3 than in NH3. Which statement by the colleague indicates understanding about the complications of this acid Question: 1. 2,3,4-trifluoropentane forms stronger hydrogen bonds. Question: Select the statement (s) which account for the differences in boiling point? A) PH3 is ionic, and NH3 is covalent. The dispersion forces in NH3 are stronger than the dipole-dipole forces in PH3. B The dispersion forces in are stronger than the dipole-dipole forces in . Thus, NH3 has a significantly higher boiling point than PH3. Which of the following statements best helps explain this observation? b. The carbon chains are farther apart in a sample of nonane than they are in 2,3,4 Which of the following best helps explain why high carbon steel is more rigid than low carbon steel? (diagram '17 #27) Elemental carbon is harder than elemental iron The additional carbon atoms within the alloy make the high carbon and steel less dense It is observed that the [SO42−] in the solution did not change over time. Wild bananas have more genetic variation, and some plants are resistant to the banana virus Explain why methanoic acid has a higher boiling point than propane. Question: Which statement best helps to explain the observation that NH3 (t) boils at -28°C,whereas PP3 (t) boils at -126°C ?A The dispersion forces in NH3 are weaker than the dispersion forces in PH3. Study with Quizlet and memorize flashcards containing terms like The molecule with the largest dipole moment A CO2 B H2O C CH4 D C2H4 E PH3, A particle-level diagram of a metallic element is shown above. Factors that affect the rate of a chemical reaction include which of the following? I. Their particles are more lightweight than the particles of the other states. The carbon chains are longer in nonane than they are in (A) (B) (C) 2,3,4-trifluoropentane. D) PH3 forms weaker dispersion forces than NH3. B) NH3 forms hydrogen bonds, and PH3 does not. Which of the following best helps to explain the deviation of the first May 21, 2019 · Gases are easily compressible, but other states of matter are not. Oct 4, 2024 · Study with Quizlet and memorize flashcards containing terms like Which of the following statements best describes how theories help explain observations?, Why are theories of human development needed?, Which statement BEST describes the laws of natural selection? and more. F2(l( b. Based on the information in the table above, which of the compounds has the highest boiling point, and why? The observation that NH3 (ammonia) boils at -28°C, whereas PH3 (phosphine) boils at -126°C can be explained by the strength of their intermolecular forces. Typically, metals are both malleable and ductile. move and conduct electricity. This substance is likely to be Which of the following statements best helps to explain why the measured pressure is significantly greater than the pressure calculated using the ideal gas law. The carbon chains are longer in nonane than the are in 2,3,4-trifluoropentane. Oct 4, 2024 · Which of the following statements best helps explain this observation? a. Which of the following best helps to explain the observation? (A) As the solution evaporates, C u 2 + (aq) and S O 4 2 (aq) leave the beaker along with the water molecules. Which statement best helps to explain the observation that boils at , whereas boils at ? A The dispersion forces in are weaker than the dispersion forces in . Study with Quizlet and memorize flashcards containing terms like Which statement best helps to explain the observation that NH3 (l) boils at −28°C, whereas PH3 (l) boils at −126°C, The ionic compounds NaCl and MgS are represented by the diagrams above. Which of the following statements best helps explain why diamond is much harder than graphite? C) Carbon atoms in diamond have four covalent bonds, whereas graphite is made of layers that are held together by relatively weak dispersion forces. Compare water with dichlorine oxide (Cl20), which has a boiling point of 2 °C. Compare water with dichlorine oxide (Cl2O), which has a boiling point of 2 °C. NH3 If P (N2O4) is 1. Which of the following could be the identity of a white crystalline solid that exhibits the following properties? • It melts at 320°C. (D)has hydrogen bonding that is weaker The students drew particle diagrams to explain the changes in the enthalpy and entropy of dissolution for LiCl based on their results and observations. Two trials are run, using excess water. Which of the following statements best describes how theories help explain observations? a. It changes the shape and charge of the substrate so that it becomes more compatible with ALAD's active site. The reaction between NH3 and water is represented above. CF4 (l) d. 35 What is the maximum population growth rate (rmax) (rmax) if the population grows to 283 in one year? The bacteria function as chemoautotrophs, extracting energy from hydrogen-rich inorganic molecules. Ammonia (NH3) boils at -33 °C, water (H2O) at 100 °C (obviously), and hydrogen fluoride (HF) boils at 20 °C. d. NH 3 molecules are polar while CH 4 molecules are not, and the greater attractions between NH 3 molecules cause the molecules to collide with the walls of the container with less force. CH3OH (you can tell from the data b/c it has the highest vapor pressure and vapor pressure is inversely proportional to IMF strength) Which statement best helps to explain the observation that NH3 (l) boils at -28 degrees C but PH3 (I) boils at -126 degrees c? c. The teacher asks the students to make a claim about the observation and to justify their claims. NH3 has hydrogen bonding that is stronger than the dipole-dipole forces in PH3 (It is the hydrogen bonding between molecules of NH3 that results in its boiling point being higher than the boiling point of PH3) Explanation The best statement to explain the observation that NH₃ (l) boils at -28°C, whereas PH₃ (l) boils at -126°C is: a) NH3 has stronger intermolecular forces than PH₃. NH3 has hydrogen bonding that is stronger than the dipole-dipole forces in PH3. As a sample of KNO3 (s) is stirred into water at 25 C, the compound dissolves endothermically. These two bases can form a connection between two strands of DNA via two hydrogen bonds. 0 nternational. D All three solutions have the same electrical conductivity because the Which of the following best helps to explain the observation? As water evaporates, more CuSO4 (s) precipitates out of the solution in the beaker. Study with Quizlet and memorize flashcards containing terms like 1) Why might increasing the concentration of a set of reactants increase the rate of reaction?, 2) What is a reaction rate?, 3) Which equations are balanced? and more. at The average kinetic energy of the helium atoms and neon atoms do not change when the gases are combined. Which of the following best helps explain why the pressure of a sample of CH4 (g) (molar mass 16g/mol) is closer to the pressure predicted by the ideal gas law than a sample of NH3 (g) (molar mass 17g/mol) ? Which of the following statements best helps to explain why the contents of the tube containing the equilibrium mixture turned a lighter color when the tube was placed into an ice bath? Which of the following best helps to explain this observation? All the chlorides of the alkaline earth metals have similar empirical formulas, as shown in the table above. The C-F bond is easier to break than the C-H bond. A solution that is initially 0. When NH3 gas ais introduced at one end of a long tube while HCl gas is introduced simultaneously at the end, a ring of white ammonium chloride is observed to form in the tube after a few minutes. Approximate values of AG f for the reactants and products are given in the following table. Compound AG: (kJ/mol) -16 0 NH3 (g) F2 (9) NF3 (9) HF9 -91 -280 Based on the information, which of the following statements best helps to explain whether or not the reaction is Study with Quizlet and memorize flashcards containing terms like Which of the following best helps to explain why the value of ∆H° for the dissolving of CaF2 in water is positive? A) CaF2(s) is insoluble in water B) CaF2(s) dissolves in water to form CaF2(aq) particles C) Ca2+ ions have very strong ion-ion interactions with F- ions in the crystal lattice D) Ca2+ ions have very strong ion Study with Quizlet and memorize flashcards containing terms like Which of the following statements best helps explain the reaction specificity of an enzyme?, Based on the molecular structures shown in the figure (Linoleic Acid and Palmitic Acid), which molecule is likely to be solid at room temperature?, Which of the following claims is scientifically accurate and consistent with an Study with Quizlet and memorize flashcards containing terms like The nurse is assessing a patient with severe ketoacidosis. Their particles are smaller in Which of the following statements best helps explain how the lead ion causes inhibition of ALAD? It changes the three-dimensional structure of the active site so that ALAD is no longer compatible with its substrate. As the solution evaporates, Cu2+ (aq) and SO42− (aq)leave the beaker along with the water molecules. the energy required to dissociate an ionic solid into gaseous ions (lattice energy) for the compounds NaF and MgF2 is shown in the table above. Dec 20, 2022 · Nonane and 2,3,4-trifluoropentane have almost identical molar masses, but nonane has a significantly higher boiling point. Oxygen has a larger atomic radius than nitrogen. They are based on random sampling. C because its molecules can form hydrogen bonds. On the basis of Coulomb's law, which of the following best helps to explain the large difference between the lattice energies of NaF and MgF2 ? A The solubility of MgF2 is less than that of NaF. The dispersion forces in NH3 are weaker than the dispersion forces in PH3 c. NH3 has hydrogen bonding that is weaker than the dipole-dipole 7 1 Which statement best helps to explain the observation that NH3 (1) boils at -28°C, whereas PH: (1) boils at -126°C?A The dispersion forces in NH3 are weaker than the dispersion forces in PH3. Based on the information in the table above, which of the compounds has the highest boiling point, and why? Question: Which statement best helps to explain the observation that NH3 (l) boils at -28°C, whereas PH3 (l)boils at -126°C ?The dispersion forces in NH3 are weaker than the dispersion forces in PH3. B O Boron nitride is a network solid of atoms connected by covalent bonds with fixed bond angles. , Both hydrogen sulfide (H2S) and ammonia (NH3) have strong, unpleasant odors. The correct statement explaining this difference is option B. Question: 71 pointWhich statement best helps to explain the observation that NH3 (I) boils at -28 C , where as PH3 (I) boils at -126 C ?NH3 has hydrogen bonding that is stronger than the dipole - dipole forces in PH3. Explain this observation, making specific comments SPS Cemistr Oct 2025page 36ntermolecular orces P Cemistr Notes 2020 b oron Watson is license uner ttribution-NonCommercial-Sarelie . Which of the following best helps explain why the pressure of a sample of CHa (g) (molar mass 16g/mol) is closer to the pressure predicted by the Ideal has f than a sample of NH_3 (g) (molar mass 17g/mol) ? a. Which of the following statements best helps explain how cell surface proteins, such as MHC proteins and T cell receptors, mediate cell communication over short distances? Select the statement (s) which account for the differences in boiling point. Study with Quizlet and memorize flashcards containing terms like Which of the following best helps to explain why the electron affinity of Br has a greater magnitude than that of I?, Which of the following best helps explain why the electronegativity of Cl is less than that of F?, Which of the following represents an electron configuration that corresponds to the valence electrons of an Which of the following best helps explain why the pressure of a sample of CH 4 (g) (molar mass 16 g/mol) is closer to the pressure predicted by the ideal gas law than a sample of NH 3 (g) (molar mass 17 g/mol)? A. Nonane has stronger van der Waals forces due to its longer carbon chain. Oct 17, 2024 · Which of the following statements best helps explain this observation? a. The dispersion forces in N H 3 are stronger than the dipole - dipole forces in P H 3. 28. Explain your answer in terms of kinetic-molecular theory. At a pressure of 1 atm, the boiling point of NH3 (l) is 240 K, whereas the boiling point of NF3 (l) is 144 K. Which of the following statements best helps explain this observation? A. This ring is closer to the HCl end of the tube than the NH3 end. Which statement best helps to explain the observation that NH3 (l) boils at −28°C, whereas PH3 (l) boils at −126°C? NH3 has hydrogen bonding that is stronger than the dipole-dipole forces in PH3 Based on the information in the table above, which of the compounds has the highest boiling point, and why? 7. AP Chemistry | 3. Question: Which statement best helps to explain the observation that NH3 (l) boils at -28°C, whereas PH3 (l) boilsat -126°C ? which statement best helps to explain the observation the NH3 (l) boils at -28 C whereas PH3 (l) boils at -126 C Mar 31, 2020 · 2) Which statement best helps to explain the observation that NH3 (l) boils at −28°C, whereas PH3 (l) boils at−126°C? B: The dispersion forces in NH3 NH3 are stronger than the dipole-dipole forces in PH3PH3. They bring about change. Just ask and ChatGPT can help with writing, learning, brainstorming and more. 0 (12 reviews) Which statement best helps to explain the observation that NH3 (l) boils at −28°C, whereas PH3 (l) boils at −126°C? Feb 11, 2021 · Therefore, the correct explanation is that NH₃'s hydrogen bonding is stronger than the dipole-dipole forces found in PH₃. In other words assumptions and more. Which of the following statements can be used to justify these observations?, Which of the following BEST describes the following model? (dissolved ions in water), The model below is BEST described by which of the following? (image of NH3 surrounded by 3 H2O molecules) and more. Which statement best helps to explain the observation that NH3 (l) boils at −28°C, whereas PH3 (l) boils at −126°C? C) NH3 has hydrogen bonding that is stronger than the dipole-dipole forces in PH3. Study with Quizlet and memorize flashcards containing terms like If NaNa reacts with chlorine to form NaClNaCl, which of the following elements reacts with NaNa to form an ionic compound in a one-to-one ratio, and why?, All the chlorides of the alkaline earth metals have similar empirical formulas, as shown in the table above. 10 M aqueous solution of sodium chloride, NaCl. The best explanation for these properties is that the electrons involved in bonding among metal atoms are A unequally shared and form Study with Quizlet and memorize flashcards containing terms like what is the function of a theory, which of the following statements best describes how theories help explain observations. Which of the following best helps explain why boron nit Boron ions and nitrogen ions are held together by ionic bonds. Why students choose Chegg We’re in it together College can be stressful, but getting the support you need every step of the way can help you achieve your best. select the answer which best explains the observation using appropriate chemical principles: a. The dispersion forces in NH, are stronger than the dipole-dipole forces in PHS. Which statement best helps to explain the statement above? A. Based on this information, the better particle diagram was drawn by which student, and why is that diagram more accurate? Which of the following statements best helps explain this observation? b. 33 atm when the system is at equilibrium at 70 degrees C, which is P (NO2) 2. NH3 has hydrogen bonding that is stronger than the dipole-dipole forces in PH3 b. This is due to the phenomenon known as hydrogen bonding. nown. Which statement best helps to explain the observation that NH3 (l) boils at −28°C, whereas PH3 (l) boils at −126°C? NH3 has hydrogen bonding that is stronger than the dipole-dipole forces in PH3 A certain crystalline substance that has a low melting point does not conduct electricity in solution or when melted. B The dispersion forces in NH 3 are stronger than the dipole-dipole forces in PH 3. Feb 14, 2024 · The observation that NH₃ boils at -28°C, while PH₃ boils at -126°C, can best be explained by statement C: NH₃ has hydrogen bonding that is stronger than the dipole-dipole forces in PH₃. In effect, replacing the two –H’s in water with two –Cl atoms lowers the boiling point by about 100 °C. B The electronegativity of Mg is greater than that of Na Question Equimolar samples of C H 4 (g) and C 2 H 6 (g) are in identical containers at the same temperature. Identify the intermolecular force(s) in each substance. , the assumptions of any theory may or may not be correct. Study with Quizlet and memorize flashcards containing terms like The nurse reviews acid-base balance with a colleague. A gaseous air‑fuel mixture in a sealed car engine cylinder has an initial volume of 600. Which of the following statements best helps explain why diamond is much harder than graphite? Carbon atoms in diamond have four covalent bonds, whereas graphite is made of layers that are held together by relatively weak dispersion forces. 1 (Intermolecular Forces):Which statement best helps to explain the observation that NH3 (L) boils at Which of the following statements best helps explain this observation? Before we look at our answer choices, let's think really fast about what it means to have a higher or lower boiling point. Which of the following statements best explains this observation? A. Which statement correctly identifies diagram 1 and identifies the compound with the lower melting point, explaining why?, The structure of Dec 29, 2021 · which statement best helps to explain the observation that nh3 (l) boils at −28°c, whereas ph3 (l) boils at −126°c? Advertisement Which of the following best helps to explain the deviations of the first ionization energy of oxygen from the overall trend? Oxygen's first ionization energy is the same as that of sulfur. The C-F is more polar than the C-H bond. Which statement explains this elevation? "The ion exchange of HCO3- and potassium is necessary to maintain the normal negative electrical charge in cells. The CโF bond is more polar than the CโH bond c. The C F bond is easier to break than the C-H bond The C-Fbond is more polar than the C-H boncd. B The particle is a negative ion, and the interactions are ion-dipole attractions. (B)The dispersion forces inare stronger than the dipole-dipole forces in. Explain why this happened. D The concentration of the enzyme inside living cells is Which of the following statements best helps explain how the enzyme speeds up the reaction? 0. It is free to use and easy to try. Feb 6, 2024 · Which of the following statements best helps explain why diamond is much harder than graphite? - ANSWER C) Carbon atoms in diamond have four covalent bonds, whereas graphite is made of layers that are held together by relatively weak dispersion forces. Which of the following statements best helps explain how the lead ion causes inhibition of ALAD? a. The carbon chains are farther apart in a sample of nonane than they are in 2,3,4 Which of the following statements best explains this observation? b) Copper ions form a complex ion with ammonia, Cu (NH3)4^2+, which removes Cu^2+ from the solubility equilibrium, causing the copper hydroxide to dissolve. Which of the following statements best helps explain this observation? Which of the following statements best helps to explain why the contents of the tube containing the equilibrium mixture turned a lighter color when the tube was placed into an ice bath. E. The boiling point tells us how much energy we have to add to break the intermolecular bonds between all of our molecules. WHY? Diamond is a covalent network solid with each carbon atom bonded to four other carbon atoms. C has hydrogen bonding that is stronger than the dipole-dipole forces in . At room temperature NH3 is a gas and H2O is a liquid, even though NH3 has a molar mass of 17 grams and H2O has a molar mass of 18 grams 1. The attractions between the CCl4 molecules that hold the molecules together in the solid state are best identified as intermolecular attractions resulting from temporary dipoles. (C)has hydrogen bonding that is stronger than the dipole-dipole forces in. NH_3 molecules are polar while CH_4 molecules are not, and the greater attractions between NH_3 molecules cause the molecules to collide with the walls of the container with less force Which of the following statements best helps explain the reaction specificity of an enzyme? A The free energy of the reactants is greater than the free energy of the products. 3. E could solve your questions and teach you more about it! AP Chemistry Test Booklet Exam Name 1. As the solution evaporates, the dissolution of CuSO4 (s) in the beaker decreases. There is repulsion between paired electrons in oxygen's 2p orbitals. C The shape and charge of the substrates are compatible with the active site of the enzyme. B. Which of the following is the best claim and justification based on the students' observation? A An exothermic chemical change occurred because heat flowed from the contents of the beaker to the room. following best helps to explain why the process is thermodynamically favorable at 25°C? Dissolving the salt increases the entropy of the system. When H2 (g) and O2 (g) are mixed together in a rigid reaction vessel at 25°C, no reaction occurs. Choose one or more: A. the dispersion forces in N H 3 are weaker than the dispersion forces in P H 3. Which gas has the higher effusion rate? If you opened a container of each gas in a corner of a large room, which odor would you detect first on the other side of the room? Assume the temperature is constant. E) PH3 forms dispersion forces, and NH3 does not. B The C 2 H 6 (g) molecules have a larger, more polarizable Which of the following statements best helps explain why diamond is much harder than graphite? C) Carbon atoms in diamond have four covalent bonds, whereas graphite is made of layers that are held together by relatively weak dispersion forces. Chemistry Unit 3 A 0. 200M in NH3 has a pH of 11. Country United States Canada United Kingdom Australia New Zealand Germany France Spain Italy Japan South Korea India China Mexico Sweden Netherlands Switzerland Dec 20, 2022 · Nonane and 2,3,4-trifluoropentane have almost identical molar masses, but nonane has a significantly higher boiling point. Which statement best helps to explain the observation that NH3 (l) boils at -28 0C, whereas PH3 (l) boils at -126 0C? a. at higher temperatures, reactions have a lower activation energy b. The carbon chains are longer in nonane than they are in 2,3,4-trifluoropentane. B The equilibrium constant of the reaction is much greater than 1. Do you need help with Which statement best helps to explain the observation that NH3 (l) boils at −28°C, whereas PH3 (l) boils at −126°C?? Spark. As water evaporates from the solution, enough of the solute precipitates to keep the concentration of the ions in solution constant. Which of the following statements best helps explain this observation? The C-F bond is easier to break than the C-H bond. CH4 (l) c. A vessel contains Ar (g) at a high pressure. The carbon chains are farther apart in a sample of nonane than they are in 2,3,4 Which of the following statements best helps explain this observation? A. PH3 is ionic, and NH3 is covalent. It changes the amino acid sequence of the ALAD protein so that the enzyme catalyzes a different reaction. 0 atm Which of the following statements best helps to explain why the contents of the tube containing the equilibrium mixture turned a lighter color when the tube was placed into an ice bath? The forward reaction is endothermic Nov 20, 2020 · Page 14 of 15 D 14. ? c. Which of the following statements best helps to explain why the measured pressure is significantly greater than the pressure calculated using ideal gas law? The combined volume of the Ar atoms are too large to be negligible compared with the total volume of the container. Question 120 NH3 (9) + 3 F2 (9) NF3 (g) + 3 HF (9) The fluorination of ammonia is represented by the balanced equation above. A C6H6 (l) B C2H5OH (l) C CH3OH (l) D C2H6O2 (l) C CH3OH (l) Which statement best helps to explain the observation that NH3 (l) boils at −28°C, whereas PH3 (l) boils at −126°C? A The dispersion forces in NH3NH3 are weaker than the dispersion forces in PH3PH3. Chapter 2 and 3, Theories 1. Which of the following statements best helps explain how the enzyme speeds up the reaction?, Which of the following statements best helps explain the reaction specificity of an enzyme?, The enzyme hexokinase catalyzes the conversion of glucose to glucose-6-phosphate, which is an important step in glycolysis. Which statement best helps to explain why NH3 (l) boils at -28 °C, whereas PH3 (l) boils at -126 °C? NH3 has hydrogen bonding that is stronger than the dipole-dipole forces in PH3. 60) Which of the following statements best helps to explain why the contents of the tube containing the equilibrium mixture turned a lighter color when the tube was placed into an ice bath? Which of the following statements best helps explain this observation? a. Which clinical manifestation should the nurse expect to see to determine whether compensation for the acidosis is taking place?, Which compensatory mechanism of the renal system helps decrease acidosis in the body?, Which statement best explains the anion gap? and more. Which statement best helps explain the observation that NH3 boils at -28C, whereas PH3 boils at -126C? DeutschEnglish (UK)English (USA)EspañolFrançais (FR)Français (QC/CA)Bahasa IndonesiaItalianoNederlandspolskiPortuguês (BR Question: Which statement best helps to explain the observation that NH, boils at 28°C, whereas PH, () boils at -126C? The dispersion forces in NH, are weaker than the dispersion forces in PH, Show transcribed image text Here’s the best way to solve it. 33 atm when the system is at equilibrium at 70 C which is P (NO2) 2 atm (23) Which of the following statements best helps to explain why the contents of the tube containing the equilibrium mixture turned a lighter color when the tube was placed into an ice bath the forward reaction is endothermic Question: use the kinetic molecular theory to explain the following observation. Which statement best helps to explain the observation that NH3 (l) boils at −28°C, whereas PH3 (l) boils at −126°C? NH3NH3 has hydrogen bonding that is stronger than the dipole-dipole forces in PH3PH3. B The dispersion forces in NH3 are stronger than the dipole-dipole forces in PH3. Their particles are more spread out than the particles of the other states. Which of the following statements best helps explain the observation that summers in the Northern Hemisphere tend to be warmer than winters? Earth is closer to the Sun during the summer, which results in less solar energy reaching Earth's surface. c. The C 2 H 6 (g) deviates much more from ideal behavior than the C H 4 (g) does. The C−F bond is easier to break than the C−H bond. NH3 forms hydrogen bonds, and PH3 does not. Density-dependent shading in the commercial fields leads to rapid spread of viruses in damp soil C. Which statement best helps to explain the observation that NH3 (l) boils at -28°C , whereas PH3 (l) boils at -126 °C? A The dispersion forces in NH 3 are weaker than the dispersion forces in PH 3. NH3 has hydrogen bonding that is stronger The strength of the intermolecular forces between the particles in the liquids Which statement best helps to explain the observation that NH3 (l) boils at −28°C, whereas PH3 (l) boils at −126°C? NH3 has hydrogen bonding that is stronger than the dipole-dipole forces in PH3. (e) Two more questions on this topic. Which of the following statements best helps to explain why the measured pressure is significantly greater than the pressure calculated using the ideal gas law? The combined volume of the Ar atoms is too large to be negligible compared with the total volume of the container. C) PH3 forms stronger dipole-dipole interactions than NH3. bgnuz xhm cvqex gvugjc vpqkv vxf oxtfc yfzzlyql ojlmmm wagroyp