1. a reaction that releases energy
decomposition
2. a reaction that takes in energy
endothermic
3. chemical change whereby a molecule breaks down into simpler molecules or elements
exothermic
4. written underneath or below
oxidation
5. a chemical change resulting from a reaction with oxygen
subscript
Oxidation: a chemical change resulting form a reaction with oxygen Endothermic:a reaction that takes in energy Exothermic: a reaction that releases energy Decomposition:chemical change whereby a molecule breaks down into simpler moles clues or elements Subscript:written underneath or below