What is a carbonate?
What is a carbonate?
A carbonate is a compound containing the carbonate ion, CO32−\text{CO}_3^{2-}CO32−. The carbonate ion has a charge of 2−2-2−, so it combines with positive ions to form compounds such as sodium carbonate, Na2CO3\text{Na}_2\text{CO}_3Na2CO3.
Step-by-step lessons on AQA GCSE Chemistry 8.3.3 Carbonates. Each one builds up to exam-style questions. Nail the core quantitative topics — moles, balancing equations and calculations — early on, since they underpin higher-tier questions across every paper and topic.