trong các chất sau : iron (Fe), copper oxide (CuO), iron (III) hidrooxide (Fe(OH)3), barium chlorride (BaCl2). Chất nào tắc dụng được với Sulfurric acid (H2SO4) tạo: a) Khí nhẹ nhất trong các chất khí, b) Kết tủa màu trắng, c) Dung dịch màu vàng, d) Dung dịch màu xanh lam. Viết phương trình phản ứng minh họa.

Estimate the molar mass of the gas that effuses at 1.6 times the effusion rate of carbon dioxide.

Which statement is true according to the kinetic theory? a. molecules of different gases with the same mass and temperature always have the same average density. b. molecules of different gases with the same mass and temperature always have the same average volume. c. molecules of different gases with the same mass and temperature always have the same pressure. d. molecules of different gases with the same mass and temperature always have the same molecular mass. e. molecules of different gases with the same mass and temperature always have the same average kinetic energy.

Nh4no3 n2o + 2h2o a chemist who is performing this reaction starts with 160.1 g of nh4no3. the molar mass of nh4no3 is 80.03 g/mol; the molar mass of water (h2o) is 18.01 g/mol. what mass, in grams, of h2o is produced?