An unknown substance has a pH value below 7. When a wet red litmus paper is dipped in the substance.. will the litmus paper turn blue or stay red?
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Answer:
Litmus paper is paper that has been treated with a specific indicator—a mixture of 10 to 15 natural dyes obtained from lichens (mainly Roccella tinctoria) that turns red in response to acidic conditions (pH 7). When the pH is neutral (pH = 7), then the dye is purple.
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Answer:
it will stay red...
Explanation:
Because below pH 7 is acidic.
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