The small crossword on "Reactions of metals and metal compounds" @ doc brown's chemistry
FOR PRINTING OUT ONLY, answers found via KS3 chemistry link above
Across: |
| 2. | When using universal indicator, this is the colour to aim for in neutralisation! (5) | | 5. | This type of element doesn't usually react with acids. (8 or 3,5) | | 9. | NaCl, MgO etc. but not Fe, Al, H etc.! (8) | | 11. | This gas is given off when a metal reacts with water or acids. (8) | | 12. | Universal indicator colour in acids. (3) | | 14. | It is always solid at room temperature except mercury. (5) | | 15. | The acid that makes nitrate salts. (6) | | 16. | It neutralises an alkali. (4) | | 17. | You see these when cleaning an iron tray with acid. (7) | | 19. | A reactive metal that burns very brightly to form an white oxide. (9) | | 21. | 1st name of the acid used in car batteries, but ph not f! (9, old name) | | 23. | The colour of the solution when copper oxide dissolves in sulphuric acid. (4) | | 24. | 2nd part of the name of a kind of alkali, the sodium version is soluble. (9) | | 25. | A simple sort of compound that forms salts with acids. (5) | | 26. | The name of the chemical process when an acid reacts with an alkali and s not z! (14) |
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Down: |
| 1. | Moderately reactive metal used to galvanise steel. (4) | | 2. | A yellow shiny metal. (4) | | 3. | Metals are good conductors of (11)? | | 4. | 1st name of the acid that makes chloride salts. (12) | | 6. | The end of salt name from nitric acid. (7) | | 7. | The colour of universal indicator in sodium hydroxide. (6 but not violet) | | 8. | They always fizz with acids! (10) | | 10. | The end of name of a salt made from hydrochloric acid. (8) | | 13. | Gas formed when carbonates dissolve in acids. (6,7) | | 18. | The problem with iron and steel, they (4)? | | 20. | I'm afraid this happens to useful metals like iron and steel unless you protect them. (8) | | 21. | A very reactive metal with water, but the orange street lamps are OK in the rain! (6) | | 22. | It neutralises and acid. (6) | | 24. | Copper pans are a good conductor of (4)? |
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