DianaAmaroxoxo3307 DianaAmaroxoxo3307

31-10-2017
Chemistry

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Phenol red is a common ph indicator. you add phenol red to an unknown substance and it turns yellow. what does this indicate about the ph of the substance?

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andrijaradunovoyoz9h andrijaradunovoyoz9h

31-10-2017

it's ph is lower than 7

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