The following equations are half reactions and reduction potentials
Ag (aq) + e
Cr+ (aq) + 3e
Ag(s) has a reduction potential of +0.80 V
Cr(s) has a reduction potential of -0.74 V
Which statement best compares the substances in these half reactions?
A silver ion gains electrons more easily and is a stronger oxidizing agent than a chromium(III) ion
A silver ion loses electrons more easily and is a stronger oxidizing agent than a chromium(III) ion.
A silver ion gains electrons more easily and is a stronger reducing agent than a chromium(III) ion.
A silver ion loses electrons more easily and is a stronger reducing agent than a chromium(III) ion.

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

If you add 5.00 ml of 0.100 m sodium hydroxide to 50.0 ml of acetate buffer that is 0.100 m in both acetic acid and sodium acetate, what is the ph of the resulting solution? acetic acid: ka = 1.8. x 10-5

How does a noncompetitive inhibitor reduce an enzyme’s activity?