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Which statements describe an element? Check all that apply.
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Asample of the male sex hormone testosterone, c19h28o2, contains 3.88Γ10^21 atoms of hydrogen.(a) how many atoms of carbon does it contain? (b) how many molecules of testosterone does it contain? (c) how many moles of testosterone does it contain? (d) what is the mass of this sample in grams?
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In this chemical reaction, 325 grams of barium (ba) react completely. how many moles of lithium (li) are produced?
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What does a complete balanced chemical equation include? a. exothermic coefficients b. endothermic coefficients c. valence electrons d. molar coefficients
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What is the subscript for oxygen in its molecular formula
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Which statements describe an element? Check all that apply....
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