Across
- 3. explanation of things or events
- 5. anything that takes up space and has mass
- 8. substance that produces H ions in a water solution
- 10. The new substance formed in a chemical reaction
- 13. substance with atoms that are all alike
- 14. the amount of matter in an object
Down
- 1. a possible explanation for a problem
- 2. substance that produces OH ions in a water solution
- 4. The substance that reacts in a chemical reaction
- 6. substance with atoms of 2 or more elements
- 7. reaction that gives off heat
- 9. a charged particle
- 11. substance that speeds up a chemical reaction
- 12. reaction that requires thermal energy input