Hydrogen reacts with oxygen.
2H2+O2→2H2O2\text{H}_2 + \text{O}_2 \rightarrow 2\text{H}_2\text{O}2H2+O2→2H2O
Relative atomic masses (ArA_rAr): H=1\text{H} = 1H=1, O=16\text{O} = 16O=16
6.0 g of hydrogen is reacted with 64 g of oxygen.
Calculate the maximum mass of water that can be produced and the mass of oxygen left over.
131 exam-style questions on AQA GCSE Chemistry 3.2 Use of amount of substance in relation to masses of pure substances, covering 3.2.1 Moles, 3.2.2 Amounts of substances in equations, 3.2.3 Using moles to balance equations, 3.2.4 Limiting reactants, 3.2.5a Concentration of solutions, and 3.2.5b Relating mass, volume and concentration. Each one has a worked solution and a mark scheme showing where the marks go.