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(Science)
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Which type of reaction always has an element and a compound as reactants
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Which function is performed by earths atmosphere? a. ultraviolet rays are prevented from reaching the ozone layer. b. earths temperature is raised and moderated by trapping in heat c. charged particles from the sun are prevented from reaching earth. d. magnetic charges from space are prevented from reaching earths surface.
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Which process describes vaporization that takes place below the surface of a liquid? condensation melting boiling evaporation
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The empirical formula of a compound is ch2o and its mass is 120 amu/molecule, what is its formula?
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(Science)
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