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Chemistry DCA

Quiz by Kate Downey

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50 questions
Show answers
  • Q1
    2 C12H26 + 37 O2 → 24 CO2 + 26 H2O
    Decomposition
    Combustion
    double Replacement
    Synthesis
    30s
  • Q2
    2 NO2 ----> 2 O2 + N2
    Decomposition
    Single Replacement
    Synthesis
    Double Replacement
    30s
  • Q3
    2 MgI2 + Mn(SO3)2 ----> 2 MgSO3 + MnI4
    Single Replacement
    Decomposition
    Double Replacement
    Synthesis
    30s
  • Q4
    SeCl6 + O2 ----> SeO2 + 3Cl2
    Synthesis
    single Replacement
    double Replacement
    Decomposition
    30s
  • Q5
    2 C5H5 + Fe ----> Fe(C5H5)2
    Single Replacement
    Synthesis
    double Replacement
    Decomposition
    30s
  • Q6
    2 AgNO3 + Cu ----> Cu(NO3)2 + 2 Ag
    double Replacement
    Single Replacement
    Decomposition
    Synthesis
    30s
  • Q7
    CH4 + 2 O2 → CO2 + 2 H2O
    Decomposition
    Combustion
    Synthesis
    double Replacement
    30s
  • Q8
    C3H8 → C3H4 + 2 H2
    Combustio
    double Replacement
    Synthesis
    Decomposition
    30s
  • Q9
    The correct chemical formula for magnesium phosphide is
    Mg₃(PO₄)₂
    MgP
    Mg₃P₂
    Mg₂P₃
    30s
  • Q10
    The name of FeCl₂ is
    iron (II) chloride
    iron dichloride
    iron (I) chloride
    iron chloride
    30s
  • Q11
    When adding a subscript to a polyatomic ion, you should...
    put parentheses around the polyatomic ion before adding a subscript
    write the new subscript next to any subscripts on the polyatomic ion
    put the polyatomic ion in square brackets before adding the subscript
    multiply any subscripts on the polyatomic ion by the subscript you are adding
    30s
  • Q12
    What is the correct name for P₃Cl₆?

    Tetraphosphorous heptachloride

    Potassium chloride

    Phosphorous chloride  

    Triphosphorous hexachloride
    30s
  • Q13
    What is the correct name for MgI₂?
    Magnesium diiodide
    Manganese diiodide
    Magnesium iodide
    Manganese IV iodide
    30s
  • Q14
    The correct name of Mg₃N₂ is
    trimagnesium dinitride
    magnesium (III) nitride
    magnesium (II) nitride
    magnesium nitride
    30s
  • Q15
    What is the correct formula for dinitrogen tetroxide?
    N₂O₄
    (N₂)₂(O₄)₃
    N₄O₂
    N₃O₃
    30s

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