Chemistry

2nd -

5thgrade

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  • 1. Multiple Choice
    45 seconds
    1 pt

    Найдите лишнюю формулу:

    НСI

    Н24

    НNО3

  • 2. Multiple Choice
    45 seconds
    1 pt

    Найдите лишнюю формулу:

    Н2СО3,

    Н3РО4

    Н24

  • 3. Multiple Choice
    30 seconds
    1 pt

    Найдите лишнюю формулу:

    H2SO4

    H2S

    H2SiO3

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