Across
- 1. A substance that is made with two or more elements
- 5. two words
- 7. Chemical process using electricity to break down compounds
- 8. The smallest unit of matter
Down
- 1. The amount of substance in a chemical reaction
- 2. Outcomes of a chemical reaction
- 3. A substance that only has one atom
- 4. The amount of atoms in a molecule
- 6. Group of atoms bonded together
- 9. Amount of matter in an object