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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is stoichiometry?
💡 Hint: Think about measuring ingredients in a recipe.
Question 2
Easy
Define limiting reactant.
💡 Hint: Consider what restricts further reaction from occurring.
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 is stoichiometry used for?
- Calculating weights of compounds
- Watching chemical reactions
- Measuring elements
💡 Hint: Consider what aspect of chemistry relates to measuring.
Question 2
True or False: The limiting reactant is the one that remains after a reaction.
- True
- False
💡 Hint: Reflect on what happens after a reactant is used up.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A reaction between nitrogen (N₂) and hydrogen (H₂) produces ammonia (NH₃) with the equation N₂ + 3H₂ → 2NH₃. If you have 25g of N₂ and 10g of H₂, how much NH₃ can you produce? Identify the limiting reagent.
💡 Hint: Molar mass of N₂ = 28g/mol; H₂ = 2g/mol.
Question 2
Combustion of propane (C₃H₈) yields CO₂ and H₂O according to the balanced equation C₃H₈ + 5O₂ → 3CO₂ + 4H₂O. If you start with 100g of C₃H₈ and have an excess of O₂, how much CO₂ will be produced?
💡 Hint: Molar mass of C₃H₈ = 44g/mol; use its ratio from the balanced equation.
Challenge and get performance evaluation