Across
- 3. a reaction that absorbs energy
- 4. a solid that forms from a solution during a chemical reaction
- 6. a change that alters the form or appearance of a material but does not make the material into another substance
- 7. a substance formed as a result of a chemical reaction
Down
- 1. a change in which one or more substances combine or break apart to form new substances
- 2. a reaction that releases energy, usually in the form of heat
- 5. a substance that enters into a chemical reaction