Part 2. Solve the following problems and round to the correct number of significant figures. 1. 0.8x 937=
2. 908/5.679=
3. 3300/54.6=
4. 47.88x63.75x6500=
5. 600/74.728=
6. 9000/33.584=
7. 0.0073x15.47x9007=
8. 50x91.89x10=
9. 900x31.9=
10. 1000/69.34=
11. 1.25-1.1159=
12. 14.818-3.4842=
13. 88.311+7.5868+33.3=
14. 7.742+2.3+66.257
15. 2.16+4.317+19.9=
16. 74.4+1.81=
17. 27.51+1.715
18. 34.8+42.49=
19. 36.394-9.6=
20. 9.519+55.591+6.7=

Which statement correctly describes potassium iodide, ki? there is a one-to-one ratio of potassium ions to iodide ions. potassium gains electrons and iodine loses electrons during the reaction. the lattice is held together by potassium anions and iodide cations.

Suppose that during that icy hot lab 65,000 j of energy were transferred to 450 g of water at 20°c what would have have been the final temperature of the water

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