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Across 6. if blue turns to red in acid. 7. this ion is present in bases. 8. basic gas is used to manufacture fertilizer such as urea. 11. produced by acids when react with metals (2 Words) 13. colorless in acid and pink in base 16. used in car batteries (2 Words) 17. bases are (intaste) 18. it is Pottasium hydroxide. (2 Words) 20. acid characteristic 21. the exact PH of a substance may be found using this (2 Words)

Down 1. these will produce salt and water. (4 Words) 2. mixture of nitric acid and hydrochloric acid. (2 Words) 3. baser are (touch) 4. changes color at different ph level 5. a glass appratus used in process of titration 9. chemical name of vitamin C (2 Words) 10. No change in color of an acid. 12. the acid responsible for putting the fizz in fizzy drinks. (2 Words) 14. another name of sulfuric acid. (3 Words) 15. this is in milk. (2 Words) 19. A bottle of Hydrochloric acid conatins this symbol.