| A | B |
|---|
| thermal decomposition | breaking down of a substance through heating |
| sodium hydrogen carbonate | baking powder |
| calcium carbonate | in limestone |
| carbon dioxide | produced when heat calcium carbonate |
| hydration reaction | happens when react with water |
| dehydration reaction | happens when water is lost |
| anhydrous | without water |
| hydrate | with water |
| exothermic reaction | heat given out during a reaction |
| endothermic reaction | heat taken in during a reaction |
