Grade 9 · CAPS
Grade 9 Chemical Reactions
Natural Sciences and Technology practice questions with answers
Grade 9 Chemical Reactions is part of the CAPS Natural Sciences and Technology curriculum, covering how to identify reactants and products, recognise the signs that a chemical reaction has taken place, and write and balance chemical equations.
The practice questions below are drawn from ReClass's own question bank, based on real Grade 9 CAPS assessments, giving learners a chance to work through chemical reaction questions in the same style they will meet in a test.
Worked example
A piece of magnesium ribbon placed in hydrochloric acid becomes warm and gas is released. Give TWO ways this tells us a chemical reaction is taking place.
Answer & explanation
Heat was released and gas was given off (any two of: heat released, gas given off, bubbles observed, reactants changed).
You'll also practise
- 1.4 Which of the following indicates a chemical reaction?
- 1.7 Which is NOT evidence that a chemical reaction has occurred?
- In a chemical reaction equation, the substances written before the arrow are called …
- Give the correct term for new substances that form during a chemical reaction.
- Balance the following chemical equation: Cu + O2 → CuO
- Give the correct term: a chemical equation in which the reactants and products have the same number of atoms of each element.
- Give the correct term for the substances that react together in a chemical reaction.
- New substances that are formed during a chemical reaction are called ...
- Which of the following chemical equations is correctly balanced?
Common mistakes
- Mixing up reactants (the substances you start with) and products (the new substances formed).
- Forgetting to balance an equation so the same number of atoms of each element appears on both sides.
Aligned to CAPS Grade 9 Natural Sciences and Technology — Chemical Reactions.
Check your own understanding
Start a personalised Grade 9 Chemical Reactions practice session on ReClass.