PLEASE HELP DUE IN A FEW MINUTES THIS IS SCIENCE BTW! If 2 grams of substance a react completely with 3 g of substance be what must be true about the products?

2A + IB — 3C+ ID

A. 1 gram of substance B is left over

B. 2 moles of substance A are used

C. 4 grams of products are produced

D. 4 moles of products are produced

E. 5 grams of products are produced

How do scientists think that gravity affected the formation of our solar system?

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

What state of matter is ice a. liquid b. element c. solid d. gas