Across
- 1. reactants react to make this
- 4. addition of an oxygen atom
- 7. helps in speeding up a reaction
- 8. rusting of iron
- 10. reactions releasing energy
Down
- 2. change of taste and smell
- 3. more reactive element displaces less reactive
- 5. equating no. of atoms on both sides of an equation
- 6. reactions in which two reactants combine
- 9. oxidation and reduction