Question

    _________is a formula for rust.

    A Fe₂ OHX H₂ O Correct Answer Incorrect Answer
    B Fe 0_3 x H₂ O Correct Answer Incorrect Answer
    C Fe₂ O_3 xH₂ O Correct Answer Incorrect Answer
    D Fe₂ Ox H₂ O Correct Answer Incorrect Answer

    Solution

    The correct answer is C

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