Question

please answer fast 12 to 20​

Answer 1

Answer:

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12.calcium carbonate

13.white

14.pink

15.strongly acidic

16.weak acid and strong base

17.c2h5oh

18.ph<5•6

19.fecl3

20.neutralisation reaction

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Answer 2

Answer:

12. calcium and phosphate

13 .Blue-green colour

14. pink

16. weak acid and strong base