pH paper showing an acid: pH 2

An example figure from the pH Reading generator.

A strip of universal indicator paper turned red, above a pH color chart from 0 to 14, matching pH 2 — A strip of universal indicator (pH) paper whose wet end has turned red-orange, above a color chart with one swatch for each whole pH from 0 to 14. The strip matches the pH 2 swatch, so the solution is strongly acidic. pH paper is read to the whole number, and the figure needs color printing.

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Answer key

pH: 2

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