Catalysts in Chemical Reactions
Chemistry ⇒ Chemical Reactions and Equations
Catalysts in Chemical Reactions starts at 9 and continues till grade 12.
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See sample questions for grade 10
A reaction proceeds much faster in the presence of a catalyst. What does this suggest about the activation energy of the catalyzed reaction compared to the uncatalyzed reaction?
A student adds manganese dioxide to hydrogen peroxide and observes rapid bubbling. What is the role of manganese dioxide in this reaction?
Describe the difference between a homogeneous and a heterogeneous catalyst.
Describe what happens to a catalyst at the end of a chemical reaction.
Explain how a catalyst affects the activation energy of a reaction.
Explain why catalysts are important in industrial chemical processes.
Explain why the use of a catalyst does not affect the enthalpy change (ΔH) of a reaction.
Name one example of a reaction where a catalyst is essential for the reaction to proceed at a practical rate.
What is a catalyst in a chemical reaction?
