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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Define a mixture.
💡 Hint: Think about what happens when you combine different materials without reacting them.
Question 2
Easy
What does ppm stand for?
💡 Hint: Consider how we express very small quantities in solutions.
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 mixture?
- A pure substance
- A combination of pure substances
- A type of liquid
💡 Hint: Think about combining different materials together.
Question 2
True or False: Solutions can be both solid-in-liquid and gas-in-liquid.
- True
- False
💡 Hint: Consider examples like carbonated beverages.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A solution contains 0.15 moles of sodium chloride dissolved in 500 mL of water. Calculate its molarity.
💡 Hint: Convert mL to L when calculating molarity!
Question 2
You have a mixture of silver and copper, what will happen to the properties if you change the proportion of these metals?
💡 Hint: Consider how alloys behave differently depending on their compositions.
Challenge and get performance evaluation