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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