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Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.
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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Define average rate of a chemical reaction.
💡 Hint: Think about how you measure changes over time in everyday scenarios.
Question 2
Easy
What is instantaneous rate?
💡 Hint: How would you gauge the speed of a car at a specific moment?
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 does the rate constant (k) represent in a rate law?
- Limits the reaction speed
- Links concentration to reaction rate
- Sum of reaction orders
💡 Hint: Consider what connects reactants' concentration to the outcome.
Question 2
True or False: The molecularity of a reaction can be a fraction.
- True
- False
💡 Hint: Think of how elements combine in fixed ratios.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Given the rate equation Rate = k[A]^2[B]^3, if the concentration of A is doubled, how does the rate change?
💡 Hint: Use the power rule for rate changes.
Question 2
Explain how a catalyst affects the activation energy of a reaction and its resulting rate.
💡 Hint: Consider how a shortcut can speed up a journey.
Challenge and get performance evaluation