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Rates of Reaction S3

Quiz by Mairi Mackenzie

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23 questions
Show answers
  • Q1
    Which factor does not affect the rate of a chemical reaction?
    Temperature
    Concentration
    The color of the reactants
    Surface area
    30s
  • Q2
    What happens to the rate of reaction when the temperature increases?
    It stays the same
    It becomes unpredictable
    It generally increases
    It decreases
    30s
  • Q3
    What is the effect of increasing the concentration of reactants on the rate of reaction?
    It turns the reaction into a gas
    It generally increases the rate of reaction
    It generally decreases the rate of reaction
    It has no effect
    30s
  • Q4
    What effect does increasing the surface area of a solid reactant have on the rate of reaction?
    It decreases the rate of reaction
    It has no effect
    It generally increases the rate of reaction
    It makes the reaction slower
    30s
  • Q5
    In a chemical reaction, what is the effect of adding a catalyst?
    It changes the products of the reaction
    It increases the amount of reactants needed
    It increases the time taken for the reaction
    It lowers the activation energy required for the reaction
    30s
  • Q6
    What role does surface area play in the rate of a chemical reaction involving solids?
    It changes the products of the reaction
    It has no effect on the reaction rate
    Increased surface area leads to a faster reaction rate
    It slows down the reaction
    30s
  • Q7
    If a reaction produces 40 mL of gas in 2 minutes, what is the rate of reaction in mL/min?
    20 mL/min
    25 mL/min
    80 mL/min
    10 mL/min
    30s
  • Q8
    A reaction generates 60 grams of product in 5 minutes. What is the rate of reaction in grams per minute?
    15 g/min
    10 g/min
    60 g/min
    12 g/min
    30s
  • Q9
    A reaction produces 150 grams of product in 30 minutes. What is the rate of reaction in grams per minute?
    15 g/min
    6 g/min
    4 g/min
    5 g/min
    30s
  • Q10
    30s
  • Q11
    In a rate of reaction graph, what does a steeper slope indicate about the rate of reaction?
    The temperature is decreasing.
    The reaction is stopping.
    The products are being formed more slowly.
    The reaction is occurring at a faster rate.
    30s
  • Q12
    What does it mean when a rate of reaction graph levels off?
    The reaction is speeding up.
    The reactants are being produced.
    The temperature is increasing.
    The reaction has reached completion.
    30s
  • Q13
    On a rate of reaction graph, what does the y-axis typically represent?
    The pressure of the reaction mixture.
    The color change of the reaction.
    The amount of product formed or reactant used over time.
    The temperature of the reaction.
    30s
  • Q14
    What causes a decrease in the slope of a rate of reaction graph as the reaction progresses?
    The products are being consumed quickly.
    The temperature is decreasing.
    More reactants are being added continuously.
    The concentration of reactants decreases over time.
    30s
  • Q15
    What do reaction rate graphs often display on the x-axis?
    Pressure of the system.
    Time.
    Volume of reactants.
    Temperature of the reaction.
    30s

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