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a. Mention 2 natural products of everyday use that could be used as acid-base indicators. Argue your answer. b. Sort the acidity of the following

a. Mention 2 natural products of everyday use that could be used as acid-base indicators. Argue your answer.

b. Sort the acidity of the following products in descending order:
Soap - ph: 8.0
coffee - ph: 5.2
tomato - ph: 4.0
milk of magnesia - ph: 11
stomach acid - ph: 1

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