Across
- 1. When both sides of a chemical equation have the same number of atoms
- 3. Basic building block of everything
- 4. The elements or compounds after a chemical reaction
- 9. When the sides of a chemical equation have different numbers of atoms
- 10. The amount of matter in an object
Down
- 2. The scientist responsible for creating the Law of Conservation of Mass
- 5. Two or more elements chemically bonded together
- 6. The elements or compounds before a chemical reaction
- 7. Anything that takes up space and has mass
- 8. Made up of one type of atom