Across
- 4. – Reaction in which a compound breaks apart.
- 6. – Reaction where substances combine to form one product.
- 8. – Center of the atom where protons and neutrons are located
- 9. – Reaction where one element replaces another.
- 12. – smallest unit of an element
- 13. – Starting substance in a reaction.
- 15. – Reaction where two elements replace each other.
Down
- 1. – Reaction in which carbon compound and oxygen produce CO2 and H2O.
- 2. – Number placed before a formula to balance an equation.
- 3. – subatomic particle with no charge
- 5. – subatomic particle with positive charge
- 7. – subatomic particle with negative charge
- 10. – States that matter is not created or destroyed.
- 11. – Equation with equal numbers of atoms on both sides.
- 14. – representation of the chemical composition of a substance
- 16. – Substance formed from a chemical reaction.