Across
- 2. accompanied by the release of heat
- 5. states that the total energy of an isolated system remains constant
- 6. a chemical reaction that is accompanied by the absorption of heat
Down
- 1. produces
- 3. the symbolic representation of a chemical reaction in the form of symbols and formulae
- 4. . A process in which atoms of the same or different elements rearrange themselves to form a new substance