# Describe what happens when calcium carbonate reacts with dilute hydrochloric acid. Include the name of the salt produced and the observations a student would make during the reaction.

> WJEC GCSE Chemistry (Wales) — 1.6 Limestone · Describe · 4 marks

## Mark scheme (4 marks)

1. Calcium carbonate reacts with dilute hydrochloric acid
2. Calcium chloride is the salt produced
3. Carbon dioxide gas is produced / effervescence / bubbling is observed
4. The solid calcium carbonate disappears / dissolves / the solid gets smaller

## Key terms

- [calcium carbonate](https://www.gradenine.co.uk/glossary/calcium-carbonate)

## Related

- [Revision notes for WJEC GCSE Chemistry (Wales)](https://www.gradenine.co.uk/learn)
- [How to answer "Describe" questions](https://www.gradenine.co.uk/tools/command-word-cheatsheet)
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Source: [GradeNine](https://www.gradenine.co.uk/q/describe-what-happens-when-calcium-carbonate-a2efe00f) · Published by Druglandscape Ltd.