CHEMISTRY Y4 REVISION
Across
- 3. ... the temperature always favours the exothermic reaction
- 5. when the equilibrium shifts to the right, the amount of ... increases
- 6. when the reverse reaction is favoured, the equilibrium shifts to the ...
- 7. a German scientist who organised the first use of chlorine gas in WWI
- 9. a reaction where products can always be changed back into original reactants
- 10. particles must ... with each other for a reaction to occur
- 11. when 2 gases react, the ratio of volumes is the same as the ratio of ...
- 13. rate of reaction equals change in amount divided by ...
- 14. when equilibrium is reached, the concentration of reactants and products is ...
- 16. concentration equals amount divided by ...
- 18. reaction in which chemicals release heat energy
Down
- 1. when rates of forward and reverse reactions are equal the system is in ...
- 2. a principle that states that any change made to a reaction in equilibrium will result in the equilibrium position moving to minimise the change made
- 4. energy required to break 1 mole of a particular covalent bond
- 8. energy needed to break existing bonds and to start a reaction
- 12. reaction in which chemicals absorb heat energy
- 15. fritz haber discovered how to make nitrogen gas react with hydrogen gas to produce ammonia
- 17. the reaction gets slower as it proceeds due to reactants being ...