Chemistry

8th -

10thgrade

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化学式を覚えよう1

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  • 1. Fill in the Blank
    20 seconds
    1 pt

    H2Oで表されるのは

  • 2. Fill in the Blank
    20 seconds
    1 pt

    O2で表されるのは

  • 3. Fill in the Blank
    20 seconds
    1 pt

    CO2で表されるのは

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