Consider the following reaction: Mg(s) + 2HCl(aq)
->
MgCl2 (aq) +H2(8)

If 0.475 g Mg reacts with 124.95 mL of 1.08 M HCl, how many mol of H2 gas will be produced?

Calculate the initial moles of Mg and HCl and find the limiting reactant?

Which best describes the activation energy of a chemical reaction? a. the combined energy of all the reactants b. the amount of energy required for a reaction to occur c. the difference in energy between products and reactants d. the potential energy stored in the bonds of reactants and products