Across
- 4. are also called burning and give off large amounts of heat (2 words)
- 8. are metal + nonmetal (includes polyatomic ions) (2 words)
- 9. are the substances on the left side of the arrow
- 11. tell how many elections an element is likely to gain, lose, or share as it bonds to other atoms (2 words)
- 13. are nonmetal + nonmetal (2 words)
- 14. are ions composed of two or more atoms that are covalently bonded and act as a single particle (2 words)
- 15. are compounds with only two elements (2 words)
- 16. 3D representations that show the relative sizes of atoms or ions in chemical bonding (2 words)
Down
- 1. represent the changes that take place in those compositions as the substances react (2 words)
- 2. are the substances on the right side of the arrow
- 3. represent the chemical composition of substances (2 words)
- 5. are reactions that absorb heat energy(2 words)
- 6. solid substances formed by a physical or chemical change in a liquid
- 7. says that matter is neither created nor destroyed during a chemical change(5 words)
- 10. are the numbers in front of the formulas
- 12. are reactions that give off heat energy(2 words)