Across
- 3. A common example of an exothermic reaction
- 5. Amount of solute in a given volume of solution
- 7. Increased by breaking solids into smaller pieces
- 10. Actual amount made compared to theoretical amount
- 12. Relative formula mass of a compound
- 13. Can be used to measure rate of a reaction producing gas
- 15. Relative atomic mass of an element
- 17. Unit that measures amount of substance
- 19. How fast reactants are turned into products
- 20. Requires energy – an endothermic process
- 22. Increasing this gives particles more energy to collide
- 23. The space a substance occupies, often in dm³
Down
- 1. Minimum energy required to start a reaction
- 2. Reaction that takes in heat from surroundings
- 4. Releases energy – an exothermic process
- 5. Substance that speeds up a reaction without being used up
- 6. The weight of a substance, used in mole calculations
- 8. Reaction that releases heat to surroundings
- 9. Transferred in all chemical reactions
- 11. Theory that explains reaction rates
- 14. Higher values mean more particles in same volume
- 16. Used to calculate yield or composition
- 18. Solid formed in some fast reactions
- 21. Simplest whole number ratio of atoms in a compound