Lead ions can be precipitated from solution with nacl according to the following reaction. pb2+(aq)+2nacl(aq)→pbcl2(s)+2na+(aq ) when 135.8 g of nacl are added to a solution containing 195.7 g of pb2+, a pbcl2 precipitate forms. the precipitate is filtered and dried and found to have a mass of 255.3 g .

Type the letter that represents the correct location for each particle type below.

Which atom or ion is the largest? a. k b. k+ c. ca d. ca2+ e. li

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