A student adds a small spatula measure of black copper(II) oxide powder to a beaker containing dilute hydrochloric acid.
Upon stirring, the reaction proceeds until the black powder completely disappears, forming a clear, blue-green solution.
State what can be deduced about the amount of hydrochloric acid used.
Practise Edexcel GCSE Chemistry Acids with exam-style questions for Foundation and Higher tier. 276 questions, matched to the Edexcel GCSE Chemistry (1CH0) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.
