chemistry - acids and bases

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Last updated 12:07 AM on 5/19/26
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6 Terms

1
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red litmus paper: acid/base/neutral

stay red; turn blue; stay red

2
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blue litmus paper: acid/base/neutral

turn red; stay blue; stay blue

3
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pH paper: acid/base/neutral

red, orange, yellow color, less than 7 pH; blue or green color, more than 7 pH; yellow-green color, 7 pH

4
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phenolphthalein acid/base/neutral

no rxn; turns pink; no rxn

5
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universal indicator: acid/base/neutral

red, orange, yellow; blue or green; yellowish-green

6
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how to find salt?

does not have either H or OH