Question 1

A student produced a salt by reacting copper carbonate with sulfuric acid.
This is the method used. 
1. Measure 50 cm³ of sulfuric acid into a beaker.
2. Add copper carbonate powder.
3. Stir the mixture.
4. Repeat steps 2 and 3 until copper carbonate is in excess.
5. Filter the mixture.
6. Warm the filtrate gently until crystals start to appear.
7. Leave the solution to cool and crystallise.

Complete the word equation for the reaction.

copper carbonate + sulfuric acid → ______ + ______ + carbon dioxide

Accepted Answer

This is a word equation for the reaction between a metal carbonate and an acid. Recall the general formula: Metal Carbonate + Acid → Salt + Water + Carbon Dioxide. Identify the metal from the carbonate and the salt name from the acid.

Question 2

What mistakes do candidates make on this AQA GCSE question?

Accepted Answer

✗ Forgetting to include water as a product.
✗ Naming the salt incorrectly, e.g., copper sulfide instead of copper sulfate.

How to approach this question

Full Answer

Common mistakes

Practice the full AQA GCSE Chemistry Higher Tier Paper 1

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