Across
- 5. substances with atoms that are alike
- 6. The number of molecules in a chemical equation
- 8. when a substance reacts with oxygen to produce energy in the form of light or heat.
- 9. formed from 2 or more elements proportions are always
- 10. displacement when water or gas forms two iconic compounds in solution are combined
Down
- 1. when one substance breaks down into two or more substances.
- 2. A substance that speeds up in a chemical reaction without being permanently changed.
- 3. when two or more substances combine to form another
- 4. when the energy given off is thermal
- 7. displacement when one element replaces a similar element forming a new element