Chemistry Crossword Ashleigh

3. A chemical that changes colour to show whether a substance is acidic, neutral or basic.
7. An endothermic reaction that takes place in green plants.
9. A biological catalyst that speeds up a reaction.
10. The term commonly used for sodium chloride.
11. A reaction with an acid and base forming a salt and water.
12. A green chemical found in the chloroplasts of a plant.
13. A scale used to measure the concentration of hydrogen ions in a solution.
14. A paper that turns red in acid and blue in a base.
15. A chemical reaction in which energy in released for uses by animals or plants.
16. An acid found in lemons and limes.
18. A base that dissolves in water.
20. A tablet that helps with heartburn

1. A sugar formed by photosynthesis and used in respiration.
2. A term used to describe materials that store carbon in their structures.
4. A single celled organisim that lives in water.
5. A substance that releases hydrogen ions and tastes sour.
6. Acids corrode this material.
8. An acid found in your stomach.
17. Rain that has acids such as nitric acid and sulfiric acid dissolved into it.
19. A substance tha releases hydroxide ions.