Barium chloride and barium sulfate are both ionic compounds.
When mixed with water, barium chloride can undergo electrolysis, whereas barium sulfate cannot.
Explain this difference in terms of the structure and behavior of their ions in water.
83 exam-style questions on Edexcel GCSE Chemistry 4.2 Electrolytic processes, covering 4.2.1 Electrolytes and the process of electrolysis, 4.2.2 Products of electrolysis using inert electrodes, 4.2.3 Half equations, oxidation and reduction in electrolysis, and 4.2.4 Electrolysis of copper sulfate and purifying copper. Each one has a worked solution and a mark scheme showing where the marks go.