Across
- 5. another name for burning
- 6. gain of valency electrons
- 8. when a reaction releases heat
- 10. loss of valency electrons
- 11. oxidation and reduction
- 12. a substance that has the ability to oxidise other substances
- 13. when a reaction absorbs heat
Down
- 1. show how a reaction gains or loses electrons
- 2. what is H2SO4
- 3. oxidation and reduction, always take place in a ...
- 4. is combustion a redox reaction true of false
- 7. reaction between iron(iii)oxide and aluminium
- 9. bromine being displayed by chlorine, from a clouorless solution of potassium bromide. What colour is the solution
- 12. Memory technique to remember the difference between oxidation and reduction
- 14. a sub-atomic particle with a negative charge