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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Define the Law of Definite Proportions.
💡 Hint: Focus on the constancy of composition.
Question 2
Easy
Give an example of a compound that follows the Law of Definite Proportions.
💡 Hint: Consider common chemical compounds.
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 Definite Proportions state?
- It states that elements can combine in any ratio.
- It states that a given compound always contains the same proportion of elements by weight.
- It describes the behavior of gas mixtures.
💡 Hint: Focus on fixed ratios in compounds.
Question 2
Is the composition of water variable?
- True
- False
💡 Hint: Think about how water is made and its ratios.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Given 100g of sodium chloride (NaCl), calculate the mass of sodium and chlorine in this sample based on the Law of Definite Proportions.
💡 Hint: Use the molar mass to find the proportions.
Question 2
If different samples of water contain 0.9g of hydrogen and 8g of oxygen, do they still represent the same water? Explain using the law.
💡 Hint: Focus on the mass ratios.
Challenge and get performance evaluation