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 are reactants in a chemical equation?
💡 Hint: They come before the arrow in the equation.
Question 2
Easy
Define a balanced equation.
💡 Hint: Think about how we keep count.
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 a balanced equation?
💡 Hint: Think about what happens in a reaction.
Question 2
True or False: A chemical equation must always be balanced to represent a reaction.
💡 Hint: Consider the physical law we studied earlier.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Balance the combustion reaction of ethanol (C₂H₅OH): C₂H₅OH + O₂ → CO₂ + H₂O.
💡 Hint: Start balancing carbon, then hydrogen, then oxygen.
Question 2
Balance the reaction of calcium with oxygen to form calcium oxide: Ca + O₂ → CaO.
💡 Hint: Remember that oxygen is diatomic.
Challenge and get performance evaluation