Across
- 2. a reaction that takes in energy from its surroundings
- 4. the end result of a chemical reaction
- 6. a fuel made from living matter
- 7. acid with a large amount of acidic particles within a solution
- 10. released from diffusion in the oceans
- 12. the most important ingredient in lemonade
- 14. bases that disolve in water
- 15. an acid that wants to give away its hydrogen ions
- 18. the reaction of metals with the oxygen in their evironment
- 19. a measurement of the acidity of a substance
- 24. tells us how acidic or basic any substance is
- 27. the product of iron reacting with oxygen
- 28. substances that indicate the pH of substances
- 29. substances that react with others to create energy
- 30. something that is not depleted when used
- 31. when a base and an acid react
Down
- 1. a pH indicator you can't spell
- 3. the process of burning something
- 5. the things that cause chemical reactions
- 8. acids that are less acidic and donate their hydrogen ions less easily
- 9. the deterioration of metals
- 11. produced when acids and bases react
- 13. a reaction that lets out heat, light or energy
- 16. a small amount of acid in a solution makes it
- 17. a substance with a pH over 7
- 20. compounds of carbon and hydrogen
- 21. biofuel commonly used in gas
- 22. a substance with a pH of 7
- 23. a liquid that's good on fish and chips
- 25. a substance with a pH under 7
- 26. a substance that can run out