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    Question

    _________is a formula for

    rust.
    A Feâ‚‚ OHX Hâ‚‚ O Correct Answer Incorrect Answer
    B Fe 0_3 x Hâ‚‚ O Correct Answer Incorrect Answer
    C Feâ‚‚ O_3 xHâ‚‚ O Correct Answer Incorrect Answer
    D Feâ‚‚ Ox Hâ‚‚ O Correct Answer Incorrect Answer

    Solution

    The correct answer is C

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