Across
- 3. multiplying by a conversion factor is like multiplying by ___
- 6. what atoms are mostly made of
- 9. this happens when metal (like a screw) reacts with oxygen
- 10. two or more atoms that share electrons
Down
- 1. avoid tasting chemicals as some are considered ____
- 2. there are ____ cookies in one dozen
- 4. some chemical reactions absorb ____
- 5. oxygen and carbon dioxide
- 7. positively charged particle in the nucleus
- 8. pickles are sour and contain acetic ____
- 11. water's state at room temperature