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Q: Distinguish between thin layer chromatography and paper chromatography
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Asked 6/20/2011 4:46:21 AM
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What is acid
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Updated 12/7/2014 12:56:04 PM
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Acid is a chemical substance that neutralizes alkalis, dissolves some metals, and turns litmus red; typically, a corrosive or sour-tasting liquid of this kind.
Added 12/7/2014 12:56:03 PM
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valency
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Updated 8/15/2014 8:08:08 PM
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In chemistry, the valence (or valency) of an element is a measure of its combining power with other atoms when it forms chemical compounds or molecules.
Added 8/15/2014 8:08:08 PM
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Confirmed by selymi [8/15/2014 11:06:08 PM]
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