Practice - Concentration of Reactants
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Practice Questions
Test your understanding with targeted questions
What happens to the rate of a reaction when the concentration of reactants increases?
💡 Hint: Think of how more particles interacting affects reactions.
Define concentration in terms of a chemical reaction.
💡 Hint: Focus on how it relates to the number of molecules.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the main effect of increasing reactant concentration?
💡 Hint: Think about collisions.
True or false: Higher pressure on gas reactants generally decreases the rate of reaction.
💡 Hint: Consider how pressure and volume relate.
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Challenge Problems
Push your limits with advanced challenges
A pilot study shows that doubling the concentration of hydrochloric acid in a reaction with zinc increased the rate of hydrogen gas production by 75%. Assuming the relationship remains linear, what would be the expected increase in reaction rate if the concentration is tripled?
💡 Hint: Look at the initial increase to predict the new rate.
If a given reaction has an activation energy of 50 kJ/mol and is performed under standard conditions at two different concentrations, discuss how the reaction rate might vary based on your knowledge of concentration and reaction mechanics.
💡 Hint: Consider both concentration and collision theory together to analyze the rate.
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Reference links
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