Chemistry

8th -

10thgrade

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Hafaliad y mol

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12 questions

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  • 1. Multiple Choice
    30 seconds
    1 pt

    nifer y molau =

    màs ÷ MR

    MR ÷ màs

    màs x MR

    MR x màs

  • 2. Multiple Choice
    30 seconds
    1 pt

    2Na + Cl2 --> 2NaCl

    Os oes gennych nifer y molau o sodiwm, bydd nifer y molau o glorin yn:

    hanner nifer y molau sodiwm

    dwbl nifer y molau sodiwm

    yr un peth a nifer y molau sodiwm

  • 3. Multiple Choice
    30 seconds
    1 pt

    Ca + Cl2 --> CaCl2

    Os oes gennych nifer y molau o galsiwm, bydd nifer y molau o glorin yn:

    hanner nifer y molau calsiwm

    dwbl nifer y molau calsiwm

    yr un peth a nifer y molau calsiwm

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