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Which of the following substances is a compound? A. hydrogen gas B. nitrogen gas C. table sugar D. oxygen gas
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According to the vsepr theory what is the shape of a molecule that has a central atom valence three other items with no lone pairs of electrons
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This chart lists four kinds of polymers and their sources. what can be known about all four polymers, despite their differences? they come from living things. they share ionic carbon bonds. they are at least 100 monomers long. they are made of repeating subunits.
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Which class of molecules functions as chemical signals? hormones water carbohydrates proteins
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Which of the following substances is a compound? A. hydrogen gas B. nitrogen gas C. table sugar D. o...
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