1. The problem statement, all variables and given/known data A metal alloy consists of aluminium and zinc. When a 1.00 g sample of alloy is reacted with excess HCl, 0.0610 g of hydrogen gas forms. Calculate the percent composition of the alloy. 3. The attempt at a solution Set up a balanced equation then calculated the relative moles and grams of the elements and compounds AlZn + HCl -> H2 + AlCl + HZn is the product correct?