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8.1 Rates of reaction

8.1 Rates of reaction

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Question 29

A student investigates the rate of reaction between calcium carbonate chips and dilute nitric acid.

The experiment is repeated three times:

  • once using a single large lump of calcium carbonate instead of smaller chips (keeping the total mass the same)
  • once with a suitable catalyst added to the mixture
  • once using a larger volume of nitric acid of the same concentration

In each case, all other conditions are kept the same.

Select the correct word in each row to show the change in the rate of reaction.

CaseChange in rate of reaction
Calcium carbonate is used as a single large lump instead of smaller chipsfasterslowerunchanged
A catalyst is added to the reaction mixturefasterslowerunchanged
A larger volume of nitric acid of the same concentration is usedfasterslowerunchanged
[2]
Markscheme

8.1 Rates of reaction Questions

  1. GCSE
  2. /Chemistry
  3. /8.1 Rates of reaction

127 exam-style questions on Edexcel GCSE Chemistry 8.1 Rates of reaction, covering 8.1.1 Measuring and interpreting rates of reaction, 8.1.2 Collision theory and the factors affecting rate, and 8.1.3 Catalysts and enzymes. Each one has a worked solution and a mark scheme showing where the marks go.

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