Across
- 2. chemical reactions that absorb thermal energy
- 6. a description of a reaction using element symbols and chemical formula
- 8. a substance that increases reaction rate
- 9. a chemical reaction in which a substance combines with oxygen to release energy
- 10. when one element swaps with another in a compound
- 12. a process in which atoms of one or more substances rearrange to form one or more new substances
- 13. a type of chemical reaction in which two substances combine to form one compound
Down
- 1. how one compound breaks down to create one or more new substances
- 3. when two elements swap with others in compounds
- 4. a substance that slows or even stops a reaction rate
- 5. the total mass of the reactants of a chemical equation shall be the same as the products
- 7. the minimum amount of energy required to start a chemical reaction
- 11. a chemical reaction that release thermal energy