Professional Courses
Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.
Categories
Interactive Games
Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.
Typing
Memory
Math
English Adventures
Knowledge
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is a balanced chemical equation?
💡 Hint: Think about the law of conservation of mass.
Question 2
Easy
What does a mole ratio indicate?
💡 Hint: Consider how quantities relate in a balanced equation.
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 derived from the equation N₂ + 3H₂ → 2NH₃?
- 1:2:3
- 1:3:2
- 2:1:3
💡 Hint: Focus on the coefficients of each reactant and product.
Question 2
True or False: The coefficients in a balanced equation represent the number of moles.
- True
- False
💡 Hint: Think about how balancing relates to moles.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Given the equation 4Fe + 3O₂ → 2Fe₂O₃, how many moles of Fe are needed to react with 6 moles of O₂?
💡 Hint: Set a proportion based on the balanced equation.
Question 2
In an experiment, 50g of H₂ reacts with an excess of O₂. Find the maximum mass of water that can be produced.
💡 Hint: Focus on molar mass and proportions.
Challenge and get performance evaluation