What most accurately explains whether liquid water or ice has a higher density, and why? A) Ice has a higher density. Substances are always denser as solids than they are as liquids because the particles of solids have less energy to move and crowd closer together.

B) Liquid water has a higher density. Substances are always denser as liquids than they are as solids because the vibrations of solid particles create larger gaps between them.

C) Liquid water has a higher density. Ice crystals have an open hexagonal structure with some empty space in the middle, while liquid water does not.

D) Ice has a higher density. Solid ice has strong hydrogen bonds that hold the particles closer together, while liquid water does not form hydrogen bonds.

Part b: study of equilibrium on solubility: mg(oh)2(s) ⇌ mg2+(aq) + 2 oh–(aq) cloudy clear (pink) 7. a. b. 8. a. b. 9. 10. 11. 12. when adding concentrated hydrochloric acid, how did the appearance of the equilibrium mixture change? the change in appearance indicated a shift in the point of equilibrium. in which direction did the equilibrium shift? (l) left (r) right explain your answer to question 7a. you should indicate which ion was added to or removed from the equilibrium mixture. when adding edta, how did the appearance of the equilibrium mixture change? the change in appearance indicated a shift in the point of equilibrium. in which direction did the equilibrium shift? (l) left (r) right explain your answer to question 8a. you should indicate which ion was added to or removed from the equilibrium mixture. upon heating in which direction is the equilibrium shifting? upon cooling in which direction is the equilibrium shifting? is the forward reaction a. endothermic explain your answers to questions 9, 10, and 11. (l) left (r) right (l) left (r) right b. exothermic