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The r values of 2 substances y and z were taken from a chromatogram run in 50% water and 50% ethanol solvent at 20 degrees
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Write the chemical formula for a compound that is made of an element from group 1 and an element from group 17
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If 15 drops of ethanol from a medical dropper weight 0.60g, how many drops does it takes from a dropper to dispense 1.0ml of ethanol? the density of ethanol is 0.80g/ml
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The r values of 2 substances y and z were taken from a chromatogram run in 50% water and 50% ethanol...
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