Across
- 3. A positively charged subatomic particle
- 9. A reaction where gas reacts with oxygen to make water and carbon dioxide
- 10. The most basic unit of matter
- 11. A negatively charged subatomic particle
- 12. A reaction with only 1 reactant
- 13. A reaction where substances combine into 1 product
Down
- 1. A neutral subatomic particle
- 2. A substance that speeds up a chemical reaction without itself being consumed
- 4. The substances on the left side of a chemical equation
- 5. Two or more substances NOT chemically bonded together
- 6. A species of atoms
- 7. The substances on the right side of a chemical equation
- 8. Two or more different atoms chemically bonded together