Across
- 2. Substance before a reaction occurs
- 3. Substance formed during a chemical reaction
- 4. Represents the number of particles needed for the reaction
- 8. A substance combines with oxygen and releases energy
- 10. Exchange of ions between two compounds
- 11. A solid formed from the reaction of two aqueous solutions
- 12. Two or more substance combine
Down
- 1. Acid-base reaction where the resulting pH is brought close to 7
- 5. Process where atoms rearrange to form new substances
- 6. One substance breaks down into two or more substances
- 7. An atom replaces another in a compound
- 9. Represents the number of atoms in an element of compound