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4.1 Predicting chemical reactions

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Question 41

A metal-recovery process uses displacement reactions. A chemist obtains these results for metals P and Q.

TestResult
P added to iron(II) sulfate solutionReaction
Q added to iron(II) sulfate solutionNo reaction
Q added to copper(II) sulfate solutionReaction

The chemist adds the same mass of P powder to separate samples of Q sulfate solution and copper(II) sulfate solution. The solutions have the same volume, concentration and starting temperature.

Explain which solution should produce the larger temperature rise.

[4]
Markscheme

4.1 Predicting chemical reactions Questions

  1. GCSE
  2. /Chemistry
  3. /4.1 Predicting chemical reactions

113 exam-style questions on OCR GCSE Chemistry 4.1 Predicting chemical reactions, covering 4.1.1 Properties and trends in Groups 1, 7 and 0, 4.1.2 Properties of the transition metals, 4.1.3 Reactivity predicted from position in the Periodic Table, and 4.1.4 Reactivity of metals and the reactivity series. Each one has a worked solution and a mark scheme showing where the marks go.

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