Across
- 5. / substance in a chemical reaction that undergoes a change
- 6. / the new substance that is formed in a chemical reaction
- 8. / Looks like one substance
- 9. Change / a new substance is formed
- 11. / 2 or more atoms
- 12. / Anything that has mass and volume
Down
- 1. / 2 or more substances that are physically combined
- 2. / More than one type of atom combined
- 3. / Groups of elements that have common characteristics
- 4. / Visibly different substances
- 6. Change / no new substance is formed
- 7. Gases / Are not reactive because of their filled outside valance shell
- 10. / Made of one type of atom