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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: It involves mass measurements in reactions.
Question 2
Easy
Provide an example of the Law of Definite Proportions.
💡 Hint: Think about water's chemical formula.
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?
- Matter can be created.
- Mass is conserved during chemical reactions.
- Mass changes during reactions.
💡 Hint: Think about what happens to mass in reactions.
Question 2
Is the following statement true or false? 'The Law of Definite Proportions states that the proportion of elements varies based on the reaction conditions.'
- True
- False
💡 Hint: Consider the chemical formula of compounds.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
In a closed system, 5 g of hydrogen reacts with 8 g of oxygen. Calculate the mass of water produced and confirm conservation of mass.
💡 Hint: Think about the combination of masses.
Question 2
If 2 moles of gas A react with 1 mole of gas B, how many moles of gas C will be produced, if 1 mole of gas C represents two moles of gas?
💡 Hint: Consider the stoichiometric coefficients in the balanced equation.
Challenge and get performance evaluation