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What is the element with the lowest electronegativity; calcium, helium, cesium, or fluorine?
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What produces wave a)sound b) heats c)transfer of energy d)vibrations
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According to le chatelierβs principle, a system in chemical equilibrium responds to stress by shifting the equilibrium in a direction that reduces the stress. normalizes the stress. increases the stress. changes the stress.
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Asample of hydrated tin (ii) chloride (sncl2) has a mass of 4.90 g. when it is dehydrated, it has a mass of 4.10 g. which is the correct chemical formula for the hydrate? sncl2β’2h2o sncl2β’4h2o sncl2β’6h2o
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What is the element with the lowest electronegativity; calcium, helium, cesium, or fluorine?...
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