| A | B |
|---|
| combustion | burning |
| oxidation | adddition of oxygen |
| endothermic | heat absorbed |
| exothermic | heat given out |
| reactant | substance used up in a reaction |
| product | substance produced in a reaction |
| precipitate | insoluble product of a reaction |
| fuel | a substance which produces energy |
| word equation | equation which uses names of products and reactants |
| symbol equation | an equation which uses chemical symbols |
| specification | the technical details of a product or process |
| conservation | keeping the same |
