Across
- 2. The scientific name for burning
- 5. Safety equipment that we should always wear when using strong acids or alkalis
- 8. Physical changes are usually _________
- 9. The substances that get used up in a chemical reaction are called the ____________
- 11. A gas that is produced when a metal reacts with an acid
- 12. A type of change where a new substance is created
- 13. A type of strong acid that can react with sodium hydroxide to make sodium chloride and water
- 16. This substance turns milky when carbon dioxide gas is bubbled through it
- 18. Food item that contains acetic acid
- 19. A salt that is produced when calcium metal reacts with sulfuric acid
- 20. This is what we use to represent a chemical reaction in written form
Down
- 1. A property of strong acids that makes them dangerous
- 3. A type of strong acid that can be found in acid rain
- 4. The reaction of an acid with an alkali
- 6. This metal does not react with dilute acid
- 7. The colour that universal indicator turns in a neutral solution
- 10. This number tells us how acidic or how alkaline a substance is
- 14. In order for a fire to burn, this gas is needed
- 15. This means that there are a lot of acid particles in a relatively small amount of water
- 17. A type of substance that can tell us whether something is an acid or an alkali