Chemistry, 02.06.2020 22:58 maliyahsanmiguel

Which is a correct method used in a scientific experiment involving acid and base solutions?

Using a pH test strip to measure the oxygen content of a solution
Adding an indicator to a solution to test its acidity
Adjusting the recorded pH measurements to prove the hypothesis
Measuring the pH of a test strip by dipping it into an indicator

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Which is a correct method used in a scientific experiment involving acid and base solutions?