Across
- 3. is a substance that is present at the start of a chemical reaction
- 7. a change to a substance that's adding something new
- 9. a change to a substance without adding things new
- 10. The number in front of a equation
Down
- 1. The rearrangement of a molecule of a substance
- 2. is a substance that is present at the end of a chemical reaction
- 4. A small size number on the bottom right of the symbol
- 5. a solid that forms when two liquids combine
- 6. A scale that shows how much acidic or basic something is
- 8. a substance that speeds up a chemical reaction