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Chemistry, 20.11.2019 07:31 trizthagod49
Choose all the answers that apply. which of the following are essential elements are the most abundant on earth and are essential for life on earth to exist? hydrogen sodium carbon chloride oxygen fast
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Consider the reaction: 2al(s) + fe2o3(s) → al2o3(s) + 2fe(s) the δhf for fe2o3(s) = -824.3 kj/mole. the δhf for al2o3(s) = -1675.7 kj/mole. finish the equation. δhrxn = [(1)( kj/mole) + (2)( kj/mole)] - [(1)( kj/mole) + (2) ( kj/mole)]
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Choose all the answers that apply. which of the following are essential elements are the most abunda...
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