A student investigates the reaction of different metals with dilute acids.
They add a piece of metal X to an excess of dilute sulfuric acid:
metal+sulfuric acid→metal sulfate+hydrogen \text{metal} + \text{sulfuric acid} \rightarrow \text{metal sulfate} + \text{hydrogen} metal+sulfuric acid→metal sulfate+hydrogenBubbles of hydrogen gas are produced at first, but the reaction quickly stops. Much of the solid metal X remains at the bottom of the test tube.
Explain why the reaction stops, even though there is still solid metal and excess acid remaining.
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.
