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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is meant by concentration in a chemical reaction?
💡 Hint: Think about how strong the solution is.
Question 2
Easy
How do smaller particle sizes affect the rate of a reaction?
💡 Hint: Consider how quickly sugar dissolves when ground up.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What affects the rate of a chemical reaction?
- Only temperature
- Only concentration
- Temperature
- surface area
- concentration
- and catalysts
💡 Hint: Remember the key factors we discussed.
Question 2
True or False: Catalysts are consumed in the reactions they speed up.
- True
- False
💡 Hint: Think of enzymes as an example.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Consider a reaction that is known to be exothermic. How would increasing the temperature affect the equilibrium position of this reaction if there was a catalyst present?
💡 Hint: Think about Le Chatelier's principle.
Question 2
If a scientist finds that a reaction does not happen at room temperature but occurs rapidly at 80°C, what would you infer about its activation energy?
💡 Hint: Relate to energy barriers in reactions.
Challenge and get performance evaluation