Gas Stoichiometry: Calculate how many liters of hydrogen gas (H2) would be produced by reacting 2.70 g of Al with hydrochloric
acid at STP.
Al (s) + 6 HCl (aq) + 3H2(g) + 2 AlCl3 (aq)
6.7 L hydrogen gas
O 4.5 L hydrogen gas
O 2.7 L hydrogen gas
3.2 L hydrogen gas

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.