Universal Indicator, pH Comparison

Universal Indicator, pH Comparison

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Caption: Universal indicator added to several test tubes containing solutions with varying pH values. 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: acetic acid, acid, acidic, acidity, alkali, alkaline, alkalinity, baking soda solution, base, basicity, caustic soda, chemical, chemistry, comparing, comparison, demo, demonstration, educational, experiment, hcl, hydrochloric acid, indicator, liquid, lye, measure, measurement, naoh, neutral, ph, ph indicator, science, sodium bicarbonate, sodium hydroxide, solution, still life, test, test tubes, testing, universal indicator, universal ph indicator, vinegar, water

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