DUE IN 5 MINUTES PLEASE HELP ME Metabolism can best be described as Question 20 options: A) electron transport through the cell. B) the breakdown of pyruvate to carbon dioxide. C) the breakdown of glucose to pyruvate. D) how matter and energy flow within life's processes and how that flow is regulated.

Nitric oxide (no) can be formed from nitrogen, hydrogen and oxygen in two steps. in the first step, nitrogen and hydrogen react to form ammonia: n2(g) + 2 h_2(g) rightarrow 2 nh_3 (g) delta h = -92. kj in the second step, ammonia and oxygen react to form nitric oxide and water: 4 nh_3(g) + 5 o_2(g) rightarrow 4no(g) + 6 h_2o(g) delta h = -905. kj calculate the net change in enthalpy for the formation of one mole of nitric oxide from nitrogen, hydrogen and oxygen from these reactions. round your answer to the nearest .

Which describes interactions between substances and stomata during photosynthesis? check all that apply. oxygen enters stomata. oxygen is released through stomata. carbon dioxide enters stomata. carbon dioxide is released through stomata. hydrogen enters stomata. hydrogen is released through stomata.

How do you identify the anode on a power source such as a battery? how do you identify the cathode? how are terms anion and cation?