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5 questions
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  • Q1

    ___ SnO₂ + ___ H₂ → ___ Sn + ___ H₂O

    2,1,2,1

    1,1,1,2

    2,2,2,1

    1,2,1,2

    60s
    STEM_GC11CRIf-g-37
  • Q2

    __ KOH + __ H₃PO₄ → __ K₃PO₄ + __ H₂O

    3,1,1,3

    3,2,3,3

    1,1,1,6

    2,1,1,1

    60s
    STEM_GC11CRIf-g-37
  • Q3

    __ KNO₃ + __ H₂CO₃ → __ K₂CO₃ + __ HNO₃

    2,1,1,2

    2,2,1,3

    2,2,1,2

    1,1,1,1

    60s
    STEM_GC11CRIf-g-37
  • Q4

    __ AgI + __ Na₂S → __ Ag₂S + __ NaI

    1,1,1,2

    2,2,1,2

    2,2,2,2

    2,1,2,2

    60s
    STEM_GC11CRIf-g-37
  • Q5

    __ Ba₃N₂ + __ H₂O → __ Ba(OH)₂ + __ NH₃

    1,1,3,1

    2,3,2,2

    1,6,3,2

    1,3,3,2

    60s
    STEM_GC11CRIf-g-37

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