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Physics question?

An indicator changes color when the acidity of a solution changes. What evidence is there that such a change took place?

2007-03-29 10:01:06 · 1 answers · asked by Lizzie 5 in Science & Mathematics ➔ Physics

1 answers

Checking the color constantly.

2007-03-29 10:44:52 · answer #1 · answered by Anonymous · 0⤊ 0⤋

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