Cho khí co đi qua m gam hỗn hợp X gồm fe3o4 và cuo nung nóng. sau 1 thời gian thu được 31,2 gam chất rắn Z và 11,2 lít hỗn hợp Y (đktc).biết y có tỉ khối với h2 là 18.Tìm m a, cho toàn bộ lượng Z ở trên bào dung dịch h2so4 đặc nóng dư, sau khi kết thúc các phản ứng thu được 6,72 lít khí so2.Tinh thành phần trăm khối lượng mỗi chất trong X

Energy defines the different "states" of matter. in no more than 3 sentences, describe the amount of kinetic energy that each of the 3 states of matter possesses and relate that to the atom/molecular motion of each "state".

Which of the following is a physical property flammability heat of combustion solubility and toxicity

Achemical equilibrium between gaseous reactants and products is shown. n2(g) + 3h2(g) ⇌ 2nh3(g) how will the reaction be affected if the pressure on the system is increased? it will shift toward the reactant side as there is lower pressure on the reactant side. it will shift toward the product side as there is higher pressure on the product side. it will shift toward the reactant side as there are a greater number of moles of gas on the reactant side. it will shift toward the product side as there are a fewer number of moles of gas on the product side.