Universal Indicator, pH Comparison

Universal Indicator, pH Comparison

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Caption: Universal indicator added to three beakers containing different solutions (left to right): acidic (vinegar), weakly acidic (distilled water) and alkaline (baking soda). 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, beaker, chemical, chemistry, comparing, comparison, demo, demonstration, educational, experiment, indicator, liquid, measure, measurement, neutral, ph, ph indicator, science, sodium bicarbonate, solution, still life, test, testing, universal indicator, universal ph indicator, vinegar, water

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