Which is the best explanation of a weak acid?
The acid is completely ionised in solution in water.
The acid is partially ionised in solution in water.
There is a large amount of acid and a small amount of water.
There is a large amount of water and a small amount of acid.
55 exam-style questions on OCR GCSE Chemistry Types of chemical reactions. Each one has a worked solution and a mark scheme showing where the marks go.