Litmus Test

Litmus Test

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Caption: Litmus test. A blue litmus paper strip was dipped into 1M hydrochloric acid (HCl). Its colour changed to red indicating an acidic solution.

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Keywords: acid, acidity, beaker, chemical, chemistry, dip, gloved hand, hand, hcl, hydrochloric acid, indicator, indicator strip, liquid, litmus, litmus test, paper strip, ph, ph indicator, solution, test, test strip, testing

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