When a CARBONATE is heated it tends to vaporise decompose neutralise

## Step 1: Understanding the questionThis question is about the behavior of carbonates when they are heated. Carbonates are a type of compound that contain the carbonate ion, CO3^2-. ## Step 2: Understanding the behavior of carbonatesWhen carbonates are heated, they undergo a specific type of chemical reaction known as a decomposition reaction. In a decomposition reaction, a single compound breaks down into two or more simpler substances.## Step 3: Applying the knowledge to the questionGiven the options in the question, the correct behavior of a carbonate when heated is that it decomposes. This is because the heat provides the energy necessary for the carbonate compound to break down into simpler substances.### The general formula for the decomposition of a carbonate when heated is: ### Where represents the metal in the carbonate.