Across
- 3. Substances produced from a chemical reaction are known as
- 5. Two substances that react with one another are called r........
- 8. A molecule with 2 hydrogen atoms and one oxygen atom
- 9. A chemical reaction can be written as a chemical e.......
- 10. Common name for sodium chloride
Down
- 1. Substance made of only one type of atom
- 2. An element can be represented by a s.....
- 4. CO2 is a formula for ....../.......
- 6. A compound is represented by a f......
- 7. Substance made of 2 or more different types of atoms