Chemistry

1st -

5thgrade

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Pengaratan besi

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10 questions

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  • 1. Multiple Choice
    10 seconds
    1 pt

    Pengaratan besi berlaku akibat kehadiran _________________.

    air

    minyak

    oksigen

    hidrogen

  • 2. Fill in the Blank
    20 seconds
    1 pt

    Pengaratan besi ialah tindak balas _____.

  • 3. Fill in the Blank
    20 seconds
    1 pt

    Oksigen bertindak sebagai agen ________________.

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