2 Al +6 HA 2 Ald, +3H, How many moles of H, are produced when 13.5 grams of solid aluminum react with HCI? (Molar
Mass: Al=26.982; HCI=36.461: AICI,=133.341; H=2.016)

How are evaporation and sublimation similar? a both involve the formation of a gas. b both release energy to the surroundings. c both take place throughout a solid. d both take place at the surface of a liquid.

Percent ionization for a weak acid (ha) is determined by the following formula: percent ionization=[ha] ionized[ha] initial×100%for strong acids, ionization is nearly complete (100%) at most concentrations. however, for weak acids, the percent ionization changes significantly with concentration. the more diluted the acid is, the greater percent ionization.a certain weak acid, ha, has a ka value of 9.4×10? 7.part acalculate the percent ionization of ha in a 0.10 m solution.part bcalculate the percent ionization of ha in a 0.010 m solution

Analyze the reaction to determine whether the reaction is exothermic or endothermic. explain your reasoning.