Question 1

This question is about copper sulfate. Blue copper sulfate turns white when it is heated. The word equation for the reaction is:
hydrated copper sulfate ⇌ anhydrous copper sulfate + water
(blue)                               (white)
What name is given to hydrated copper sulfate in this reaction? Select one option.

Accepted Answer

Read the word equation. Identify the substances on the left side of the arrow. These are the starting materials. Recall the scientific term for the starting materials in a chemical reaction.

Question 2

What mistakes do candidates make on this AQA GCSE question?

Accepted Answer

✗ Confusing reactant with product. Products are on the right side of the equation.
✗ Choosing catalyst. A catalyst is not consumed in the reaction, whereas the hydrated copper sulfate is.

This question is about copper sulfate. Blue copper sulfate turns white when it is heated. The word equation for the reaction is:
hydrated copper sulfate ⇌ anhydrous copper sulfate + water
(blue) (white)
What name is given to hydrated copper sulfate in this reaction? Select one option.

How to approach this question

Full Answer

Common mistakes

Practice the full AQA GCSE Chemistry Foundation Tier Paper 2

More questions from this exam