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 mock test.
Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Define the Law of Conservation of Mass.
💡 Hint: Think about how mass behaves in reactions.
Question 2
Easy
What are reactants in a chemical reaction?
💡 Hint: Reactants are on the left side of a chemical 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 does the Law of Conservation of Mass state?
- Mass can be created
- Mass can be destroyed
- Mass is conserved in reactions
💡 Hint: Think about whether mass can change during reactions.
Question 2
True or False: The total mass of products is less than reactants in a chemical reaction.
- True
- False
💡 Hint: Recall what happens during chemical reactions.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A chemical reaction produces 150g of product from 100g of substance A and 60g of substance B. How do you reconcile the 10g difference?
💡 Hint: Investigate what might prevent the reaction from following the law.
Question 2
In a combustion reaction, a sample of methane completely combusts using 64g of oxygen. Calculate the mass of products formed and discuss the implications.
💡 Hint: Apply conservation principles here to arrive at the solution.
Challenge and get performance evaluation