Across
- 5. it gives out heat during the reaction
- 7. the elements reacting together in a chemical reaction
- 8. this reactions needs heat to occur
- 10. magnesium(Mg) + oxygen(O2)
Down
- 1. something that helps speed up a chemical reaction
- 2. magnesium(Mg) + chloride(Cl) (magnesium ___)
- 3. a revesible reaction
- 4. the result when iron(Fe) reacts with water(H2O) and oxygen(O2)
- 6. carbon(C) + oxygen(O2) (___ dioxide)
- 9. a chemical reaction forms a chemical..