Brass is an alloy of copper and zinc.
A sample of brass was made by mixing 45.5 g of copper with 19.5 g of zinc.
Calculate the percentage of zinc in this brass.
97 exam-style questions on Edexcel GCSE Chemistry 6.1 Transition metals, alloys and corrosion, covering 6.1.1 Properties of transition metals, 6.1.2 Corrosion and its prevention, and 6.1.3 Alloys and the uses of metals. Each one has a worked solution and a mark scheme showing where the marks go.