Across
- 2. a new solid is formed
- 4. identifies how many molecules are present
- 7. elements or compounds before a chemical change
- 8. What kind of change occurs when no new substance is formed
Down
- 1. shows what substances are present before and after a chemical reaction
- 3. located in the nucleus and has a positive charge
- 5. shows the number of each type of atom(small number)
- 6. new substances formed after a chemical reaction