Universal Indicator, pH Comparison

Universal Indicator, pH Comparison

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Caption: Universal indicator added to two test tubes containing different solutions. Left: diluted hydrochloric acid (acidic). Right: diluted sodium hydroxide (alkaline). Universal indicator changes its colour depending on the pH of the solution. Red indicates a strong acid, yellow/orange indicates an acid, green is neutral, blue indicates an alkali, and purple indicates a strong alkali.

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Keywords: acid, acidic, acidity, alkali, alkaline, alkalinity, base, basic, basicity, caustic soda, chemical, chemistry, comparing, comparison, demo, demonstration, educational, experiment, hcl, hydrochloric acid, indicator, liquid, lye, measure, measurement, naoh, ph, ph indicator, science, sodium hydroxide, solution, still life, test, test tube, testing, universal indicator, universal ph indicator

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