Which of the following equations represents (satisfies) the Law of Conservation of Matter? A. H2O2 > H2O + O2
B. 2Fe2O3 + 3C > 4Fe + 3CO2
C. SO2 + O2 + 2H2O > 4H2SO4

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.