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  • PH indicator

    A pH indicator is a substance that changes its color at a certain pH. pH stands for power of...

  • Phenolphthalein

    Phenolphthalein is a chemical compound with the formula C20H14O4 that is commonly used as a pH...

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current03:53, December 26, 2017Thumbnail for version as of 03:53, December 26, 2017556 × 379 (46 KB)JoeyPknowsalotaboutthat (Talk | contribs)