HELP Place about 3 mL of 0.01 M acidified iron (II) sulfate, FeSO4, in a test tube.
Using a clean eyedropper, add 6 drops of 0.01 M potassium permanganate, KMnO4, 1 drop at a time, shaking the test tube after each additional drop.
What do the reactants look like?
What happens when the reactants are combined? Make observations concerning anything that might indicate a chemical reaction, such as production of a gas or a precipitate, color change or temperature change (did the test tube get cold or hot?).
Why do you think a reaction has, or has not, occurred?

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