When a 0.3445 gram sample of solid calcium (ca) was burned in a constant-volume calorimeter (bomb calorimeter) with a measured heat capacity of 0.1975 kj/°c, the temperature of the calorimeter increased by 27.63°c. (a) calculate the change of heat released by the combustion of the calcium sample. kj (b) determine the change of heat that would be released by the combustion of 1 mole of calcium.

What is the number of moles of chemical units represented by 9.03x10^24? and how do i show work? (dumb it down )

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

Label a-f based on the table using c for concentrated and d for dilute