A marine engineer is investigating the corrosion resistance of two different copper-nickel alloys, Alloy C and Alloy D, which are being considered for underwater pipework. The engineer is provided with identical square sheets of each alloy, a balance, two glass beakers, and a container of synthetic seawater.
Devise a quantitative experiment to determine which alloy is more resistant to corrosion.
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.