Across
- 1. A subatomic particle with a positive electric charge.
- 6. Percentage of reactants changed to useful products.
- 7. the heat required to raise the temperature of a particular substance by one degree.
- 13. A substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.
- 14. The amount of space on a substance has to react.
- 15. A manufacturing process that runs all the time.
- 19. The idea that the rate of a chemical reaction depends on the frequency of successful collisions.
- 20. A reaction which takes in energy, usually in the form of heat. This is shown by a drop in temperature.
- 21. A reaction which gives out energy, usually in the form of heat. This is shown by a rise in temperature.
- 23. A subatomic particle with no electric charge.
Down
- 2. The centre of an ATOM that contains the PROTON and NEUTRON.
- 3. A manufacturing process that only occurs at certain times.
- 4. The mass of a NUCLEUS of an ATOM.
- 5. The number of particles in a particular space.
- 8. Any compound manufactured for use as a medicinal drug.
- 9. An experiment used to measure how much energy a fuel supplies.
- 10. The smallest particle of a chemical element that can exist.
- 11. How quick or slow a reaction is progressing.
- 12. The force between two atoms that are chemically joined.
- 16. The different physical forms of an element. For example, carbon can appear as graphite, fullerenes, and diamond.
- 17. a technique for the separation of a mixture by passing it in solution or suspension through a medium in which the components move at different rates.
- 18. A comparison between the actual yield of a reaction and the predicted yield, expressed a percentage.
- 22. A subatomic particle with a negative electric charge.