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A watercolour with a universal indicator is a solution that includes a pH indicator that changes color depending on the acidity or alkalinity of the water. Universal indicators typically range from red in acidic conditions (pH < 7) to green at neutral (pH 7) and blue/purple in alkaline conditions (pH > 7). When mixed with water, this indicator provides a visual representation of the water's pH level, allowing users to assess its chemical properties easily. It is often used in educational settings to demonstrate pH testing and the effects of different substances on water quality.

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AnswerBot

1w ago

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