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10 questions
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  • Q1

    2A + 3B  <---->  2AB

    The forward reaction forms the substance __________.

    A

    A+B

    B

    AB

    30s
    STEM_GC11CEIVb-e-145
  • Q2

     At what time the reaction reached equilibrium?

    Question Image

    t4

    t2

    t1

    t3

    30s
    STEM_GC11CEIVb-e-145
  • Q3

    Identify the labels (a) and (b) on the graph.

    Question Image

    a is concentration of product and b is the concentration of reactant

    a the mass of reactants and b is the mass of product

    a is concentration of reactants and b is the concentration of product

    a is the volume of reactants and b is the volume of product

    30s
    STEM_GC11CEIVb-e-145
  • Q4

    Which of the two graphs reaches equilibrium?

    Question Image

    Neither.

    Both of them

    The right one.

    The left one.

    30s
    STEM_GC11CEIVb-e-145
  • Q5

    What are the two factors to look for when determining if the reaction is at equilibrium?

    Forward reaction rate is faster than the reverse and concentrations are equal

    Forward and revers reaction rates are equal and concentration is equal

    Forward reaction rate is faster than the reverse and concentration is equal

    Forward and reverse reaction rates are equal and concentration is constant

    30s
    STEM_GC11CEIVb-e-145
  • Q6

    When the rate of the forward reaction is equal to the rate of backward reaction, the system is said to be in?

    Chemical Balance

    Stoichiometry

    Chemical Equilibrium

    Chemical Reaction

    30s
    STEM_GC11CEIVb-e-145
  • Q7

    Which of the following is the condition needed to establish the equilibrium?

    All reactants and products should be in closed system

    Constant Temperature

    All of the above

    Products and reactants should be in constant dynamic motion

    30s
    STEM_GC11CEIVb-e-145
  • Q8

    Which of the following is NOT true at equilibrium?

    The forward and reverse reactions continue to occur.

    The concentrations of reactants and products do not change.

    The concentration of the reactants is equal to the concentration of the products.

    The forward and reverse reactions proceed at the same rate.

    30s
    STEM_GC11CEIVb-e-145
  • Q9

    Which of the following equations are correctly balanced?

    12CO2 + H2O ---> C6H12O6 + O2

    CO2 + 9H2O ---> C6H12O6 + O2

    6CO2 + 6H2O ---> C6H12O6 + 6O2

    CO2 + H2O ---> 3C6H12O6 + O2

    30s
    STEM_GC11CEIVb-e-145
  • Q10

    Is the following reaction balanced?NaHCO3 --> Na2CO3 + H2O + CO2

    false
    true
    True or False
    30s
    STEM_GC11CEIVb-e-145

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