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4 votes
Which of the following are good ways to test whether a solution is an acid or a base?

Tasting it
Litmus paper
Phenolphthalein
Touching it

2 Answers

4 votes
The answer is litmus paper and phenolphthalein
User Kim Schroeder
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1 vote
litmus paper and phenolphthalein
User BatyaGG
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