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A sample of an unknown substance has a mass of 42g and a volume of 28 cm3. What is the density of the substance?
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Acompound contains c, h, and o atoms. when 1.130 g of the compound is burned in oxygen, 1.064 g co2 and 0.3631 g h2o are produced. what is the empirical formula of this compound?
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Stage in which a star’s outer layers have started to cool and grow outward?
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A sample of an unknown substance has a mass of 42g and a volume of
28 cm3. What is the density of t...
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