Soap cleans things by allowing oil and water to mix. the process is called emulsification. the ch2 part of the molecule resembles oil in polarity and dissolves in the oil, while the coo- part of the molecule resembles water in polarity and attaches to water molecules. draw a picture showing 10 stearate ions immersed in a grease glob surrounded by water. use the shorthand notation for the molecule from page 91. show it with a sign taking the place of the right-hand h. the heads of the stearate ions will line the outer surface of the glob, and all of the tails will point to and almost meet in the center of the glob.

Asingle atom of an element has 21 neutrons, 20 electrons, and 20 protons. which element is it? ok o z

If a bottle of olive oil contains 1.4 kg of olive oil, what is the volume, in milliliters ( ml ), of the olive oil?

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