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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the mole ratio of O₂ to CO₂ in the equation 2 H₂ + O₂ ⟶ 2 H₂O?
💡 Hint: Check the coefficients of O₂ and H₂O.
Question 2
Easy
If you have 4 moles of H₂, how many moles of O₂ are needed?
💡 Hint: Use the balanced equation to determine the ratio.
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 the mole ratio of reactant to product in a balanced chemical equation?
- It is arbitrary.
- It means the same as the balanced equation coefficients.
- It has no meaning.
💡 Hint: Refer to the definition of mole ratios.
Question 2
True or False: The balanced equation can change depending on the coefficients we use.
- True
- False
💡 Hint: Think about the concept of conservation of mass.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
In a combustion reaction, 23 g of ethane (C₂H₆) is burned in excess oxygen. Determine how many grams of CO₂ are produced.
💡 Hint: Start by balancing the equation and finding molar masses.
Question 2
Ammonia (NH₃) burns in a reaction with oxygen described by the equation 4 NH₃ + 3 O₂ ⟶ 2 N₂ + 6 H₂O. If you start with 15 g of NH₃, how many grams of water will be produced?
💡 Hint: Perform the conversion for NH₃ to moles and use mole ratios to find water.
Challenge and get performance evaluation