The image represents the reaction between a certain number of molecules of N2 and H2. Two squares are shown. Inside the left square one unit of two joint circles if shown. The molecular formula of nitrogen gas is shown on top of this square. The square on the right has four units of two joint circles. The molecular formula for hydrogen gas is shown on top of this square If the maximum amount of NH3 is formed during the reaction, what is the leftover reactant? One molecule of N2
One molecule of H2
Two molecules of N2
Two molecules of H2

The variability in marine salinity between habitats does not impact the fish living there. select the best answer from the choices provided t f

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

Which answer tells the reason the earth’s climate is getting warmer? too many animals are becoming extinct. large glaciers are melting in antarctica. the earth is moving closer to the sun. driving cars gives off gases that trap heat in the atmosphere.