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U7.2 Study Guide (Chemical Equations)

Quiz by Aaron Holley

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15 questions
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  • Q1

    Identify the different parts of a chemical equation.

    Users link answers
    Linking
    60s
  • Q2

    A chemical equation that uses words instead of chemical formulas to express a chemical reaction is called a(n) ____.

    word equation

    skeleton equation

    discussion expression

    balanced chemical equation

    60s
  • Q3

    A chemical equation that shows the chemical formulas of the reactants and products is called a(n) ____.

    balanced chemical equation

    discussion expression

    word equation

    skeleton equation

    60s
  • Q4
    60s
  • Q5
    60s
  • Q6
    60s
  • Q7
    60s
  • Q8

    Which of the following is the best skeleton equation for the description below:

    Magnesium reacts with sodium fluoride to produce magnesium fluoride and elemental sodium.

    Mn + NaF \ \ \longrightarrow\ \ MnF2 + Na

    Mg + NaF \ \ \longrightarrow\ \ MgF + Na

    Mg + NaF \ \ \longrightarrow\ \ MgF2 + Na

    MgF2 + Na \ \ \longrightarrow\ \  Mg + NaF 

    120s
  • Q9

    Which of the following is the best skeleton equation for the description below:

    Carbon dioxide and water are produced when crystalline C6H12O6 is burned in the presence of oxygen gas.

    C6H12O6  + O2 \ \ \longrightarrow\ \ C2O + HO2

    C6H12O6  + O \ \ \longrightarrow\ \ CO2 + H2O

    CO2 + H2\longrightarrow\ \  C6H12O6  + O

    C6H12O6  + O2 \ \ \longrightarrow\ \ CO2 + H2O

    120s
  • Q10

    Which of the following is the best skeleton equation for the description below:

    Zinc and lead(II) nitrate react to form zinc nitrate and lead metal.

    Zn + PbNO3 \longrightarrow\ \ ZnNO3 + Pb

    Zn  + Pb(NO3)2 \ \ \longrightarrow\ \ ZnNO+ Pb 

    Zn(NO3)2 + Pb \ \ \longrightarrow\ \ Zn  + Pb(NO3)2

    Zn + Pb(NO3)2 \ \ \longrightarrow\ \ Zn(NO3)2 + Pb

    120s
  • Q11

    Which of the following is the best skeleton equation for the description below:

    Sodium phosphate and calcium chloride react to form calcium phosphate and sodium chloride.

    Na3PO4 + CaCl2 \ \ \longrightarrow\ \ Ca3(PO4)2 + NaCl

    Na3P  + CaCl2 \ \ \longrightarrow\ \ Ca3(PO4)2 + NaCl

    Na3PO4 + CaCl2 \ \ \longrightarrow\ \ CaPO4 + NaCl

    Na3PO4 + CaCl \longrightarrow\ \ Ca3(PO4)2 + NaCl2

    120s
  • Q12

    Which of the following is the best skeleton equation for the description below:

    Calcium hydroxide and carbon dioxide yields calcium carbonate and water.

    Ca(OH)2 + C2O2 \longrightarrow\ \ CaCO3 + H2O

    CaOH + CO2 \ \ \longrightarrow\ \ Ca(CO3)2 + H2O

    Ca(OH)2 + CO2 \ \ \longrightarrow\ \ CaCO3 + H2O

    CaOH  + CO2 \ \ \longrightarrow\ \ CaCO3 + H2O

    120s
  • Q13

    Which of the following is the best skeleton equation for the description below:

    Aqueous iron(III) chloride and sodium carbonate solution react to form aqueous sodium chloride and a precipitate of iron(III) carbonate.

    NaCl + Fe2(CO3)3 \ \ \longrightarrow\ \ FeCl3 + Na2CO3

    FeCl2 + NaCO3 \ \ \longrightarrow\ \ Fe3(CO3)2 + NaCl

    FeCl3 + Na2CO3 \ \ \longrightarrow\ \ NaCl + Fe2(CO3)3

    FeCl3 + Na2CO3 \longrightarrow\ \ NaCl3 + FeCO3

    120s
  • Q14

    Which of the following is the best skeleton equation for the description below:

    Potassium chloride and oxygen gas are produced from the decomposition of potassium chlorate.

    KClO3 \ \ \longrightarrow\ \ KCl + O2

    KClO4 \ \ \longrightarrow\ \ KCl + O2

    KCl + O2  \ \ \longrightarrow\ \  KClO3

    KClO3 \ \ \longrightarrow\ \ KCl2 + O2

    120s
  • Q15

    Which of the following is the best skeleton equation for the description below:

    Cobalt(III) bromide reacts with fluorine gas and produces bromine and cobalt(III) fluoride.

    CoBr3 + F2 \ \ \longrightarrow\ \ Br2 + CoF3

    CoBr3 + F2 \ \ \longrightarrow\ \ Br2 + CoF2

    CoBr3 + F \ \ \longrightarrow\ \ Br + CoF3

    CoBr3 + F2 \ \ \longrightarrow\ \ Br3 + CoF3

    120s

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