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Ablack powder is added to a clear liquid. fizzing and bubbling occur, and the test tube becomes hot to the touch.
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Drug abuse will not lead to physical and psychological dependence. true or false ?
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If a solution contains 3 moles/liter of sodium chloride (nacl, made of sodium ions and chloride ions), what is the osmolarity of this solution
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Rank the four gases (air, exhaled air, gas produced from from decomposition of h2o2, gas from decomposition of nahco3) in order of increasing concentration of co2
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Ablack powder is added to a clear liquid. fizzing and bubbling occur, and the test tube becomes hot...
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