Across
- 3. solid formed in reaction in solution
- 6. a new substance produced chemical reaction
- 8. gas filled in chips packet
- 9. chemical substance increases reaction's rate
- 10. Heat evolved in this reaction
Down
- 1. it turns milky when reacts with CO2
- 2. reaction Zn + HCL----> ZnCl2 + H2
- 4. this gas produces a pop sound when burns
- 5. this change always produces a new substance
- 7. the process of burning a substance in air