123. Which of the following statements is/are true? I. Because ionic forces are so much stronger...
PART 1 of 3: Consider two ionic compounds that dissolve fully in water at room temperature. You an experiment and determine the following: * Compound A has stronger solute-solute attractions than solute-solvent attractions. * Compound B has stronger solute-solvent attractions than solute-solute attractions. Which of the following best describes the ΔH solution for Compound A and Compound B, respectively? ANSWER CHOICES: 1.) Both processes are endothermic, but Compound A is more endothermic 2.) Exothermic, endothermic 3.) Both processes are exothermic,...
Essex County College Division of Biology and Chemistry General Chemistry II Problem Set I CHM 10 1. Which of the following mixtures have components which can be separated by filtration? A) colloids B) solutions D) all of these 2. In most liquid solutions, the component present in the larger amount is called the A) dispersed medium B) emulsifying agent C) solute D) solvent 3. lodine, 12(s), is more soluble in dichloromethane, CHCI than in water because A) both iodine and...
Real gases tend to exhibit non-ideal behavior because their particles possess which properties? i. Attractive forces between molecules ii. attractive forces between molecules and their containers (<-- is this true at all??) iii. finite volume a. i only b. ii only c. iii only d.i, ii, iii e. i and ii only
i need help with #s 30-32 and can you check 28 and 29 28. Which of the following is an isomer of CHOCH,? (a) CH.CH (b) CH,COOH (C) CH,CH,OH (4) CH,CH,CH, c) CH-CH,O CHỊCH, at atm? an a 29. Which of the following has the greatest solubility in C. H (a) SO (b) NaCl H.O. (d) CCIO JOT NH H - c-c- c-c-c- HHH 30. High solubility of an ionic solid in water is favored by which of the following...
1. Which of the following is in the correct order of standard state entropy? I. Liquid water < gaseous water II. Liquid water < solid water III. NH; <H3 a. I only b. II only III only d. I and II only e. I and III only c. 2. Which of the following will have the greatest standard molar entropy (Sº)? a. NH3(g) d. H2O(1) b. He(g) CaCO3(s) c. C(s, graphite) e. 3. Indicate which of the following has the...
Which of the following statements is/are correct? I. A Brønsted base is a hydrogen ion donor. II. Acids produce hydronium ions in water. III. In an aqueous solution of a strong acid, HA(aq), the hydronium ion concentration is approximately equal to the initial concentration of the acid [H3O+] = [HA]). I only I, II, and III II only II and III III only
Which of the following changes would increase the vapor pressure of a liquid? i. An increase in temperature ii. An increase in the intermolecular forces in the liquid iii. An increase in the size of the open vessel containing the liquid a) i and ii only b) i and iii only c) i only d) ii only e) iii only If the rate of evaporation from the surface of a liquid exceeds...
1)Which of the following is/are true? I. Force is a scalar quantity. II. Force is a vector quantity. III. A force is a push or a pull between objects that occurs only when the objects are in physical contact. IV. Non-contact forces are also called action-at-a-distance forces. A) I and III only B)II and IV only C)II only D)I only E)II and III only 2)Which of the following is/are true? I. Mass is a vector quantity. II. Mass is a...
11.) Which one of the following is truc regarding the ability of a solid to form a solution regarding the Soluut solvent A. The energy involved in the process depend on the polarity of the solvent molecules B. The formation of the solution is an endothermic process C. Its formation depends on the crystal lattice encrgy of the solhd D. The solution forms incrementally one mole at a time 12.) Consider the three statements below. Which numbered response contains all...
19. Which of the following statements are always true? (i) Re(2)Im(iz) 0 (ii) Re(iz)Im(z) = 0 (iii) z- Zi Im(z) = 0 (a) (ii) only (b) (i) only (c) (iii) only (d) (i) and (ii) only (e) (ii) and (ii) only