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Balancing equation

Quiz by Aji Budiyanto

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10 questions
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  • Q1
    Balance this equation- __P4 + __O2 --> __P2O3
    3, 1, 2
    1, 2, 3
    1, 3, 2
    2, 1, 3
    45s
  • Q2
    Balance this equation. _CH4 + _O2 --> _CO2 + _H2O
    2,1,2,1
    1,2,2,1
    1,2,1,2
    1,2,1,1
    45s
  • Q3
    Balance this equation. _CF4 + _Br2 -- _CBr4 + _F2
    2,2,2,2
    1,2,1,2
    2,1,2,1
    1,2,2,1
    45s
  • Q4
    Balance this equation _N2 + _H2 --> _NH3
    2, 1, 3
    1, 3, 2
    2, 3, 1
    1, 2, 3
    45s
  • Q5
    Balance this equation. _Mg + _Cl2 --> _MgCl2
    1, 2, 1
    1, 1, 1
    2, 1, 1
    1, 1, 2
    45s
  • Q6
    Balance this equation. _SnO2 +_H2-->_Sn +_H2O
    2, 1, 1, 2
    2, 1, 2, 1
    1, 2, 1, 2
    1, 2, 2, 1
    45s
  • Q7
    ____Mg + ___ HCl → ____MgCl2 + ____H2
    2, 2, 1, 1
    1, 2, 1, 1
    1, 2, 2, 1
    1, 1, 2, 1
    45s
  • Q8
    ___PCl5 + ___ H2O → ___ HCl + ____ H3PO4
    1, 4, 1, 5
    1, 5, 4, 1
    1, 1, 4, 5
    1, 4, 5, 1
    45s
  • Q9
    Which of the following is an unbalanced equation?
    PbO2 + 2H2-->2Pb + H2O
    2Na+ 2H2O-->2NaOH + H2
    CaCO3 --> CaO + CO2
    CS2 + 2O2 --> CO2 + 2SO2
    45s
  • Q10
    What coefficient should be used to make the following equation balanced? N2+O2--> ____NO
    4
    3
    1
    2
    45s

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