Across
- 2. an ARROW to show the DIRECTION of a chemical reaction
- 3. a number in FRONT of a chemical symbol or chemical formula
- 6. a group of atoms bonded together
- 7. a substance at the BEGINNING of a chemical reaction
- 8. a substance formed as the RESULT of a chemical reaction
- 11. a measure of the amount of matter in an object
- 14. mass is neither created nor destroyed in a chemical reaction
- 15. a chemical change that forms new substances
Down
- 1. a shortened version of an element's name
- 4. a model of a chemical reaction
- 5. the ability of an atom or molecule to undergo a chemical reaction
- 9. a notation to show the number of atoms in a molecule
- 10. a substance of TWO or more chemical elements chemically combined
- 12. the number FOLLOWING the chemical symbol
- 13. anything that occupies space and has mass
