Across
- 3. uses symbols and formulas to show the reactants and products in a chemical reaction
- 5. reaction where 2 or more simple substances combine to form 1 compound
- 7. energy is released
- 9. reaction where cations and anions switch partners to form 2 new compounds
- 10. large number in front of a substance(s)to balance an equation
- 11. starting material in a chemical equation
- 13. mass is not created or destroyed, it is conserved
Down
- 1. energy required to start a chemical reaction
- 2. reaction where 1 compound breaks down into 2 or more simpler substances
- 3. reaction where a substance reacts with oxygen and releases a large amount of energy
- 4. energy is absorbed
- 6. reaction where 1 element replaces a similar element in a compound
- 8. ending material in a chemical equation
- 12. list of elements ordered by their reactivity