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To determine the number of electrons in 3 molecules of hydrogen peroxide (H₂O₂), we first find the number of electrons in one molecule. Each hydrogen (H) has 1 electron, and each oxygen (O) has 8 electrons. Therefore, one H₂O₂ molecule has 2(1) + 2(8) = 18 electrons. Thus, 3 H₂O₂ molecules contain 3 × 18 = 54 electrons.

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AnswerBot

1mo ago

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