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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is a chemical reaction?
💡 Hint: It involves a change in substances.
Question 2
Easy
What are reactants?
💡 Hint: They are found on the left side of the 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 is produced in a chemical reaction involving baking soda and vinegar?
- Water
- Carbon dioxide gas
- Salt
💡 Hint: Look for what happens when they are mixed.
Question 2
True or False: In a chemical change, the original substances are lost.
- True
- False
💡 Hint: Think about the changes that occur in cooking.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
You have two solutions: one of vinegar and another of baking soda. Design an experiment to observe a chemical change using these solutions.
💡 Hint: What do you expect will happen when these react?
Question 2
Describe a real-world application of catalysts in industrial chemistry.
💡 Hint: Think about how industries save energy and time.
Challenge and get performance evaluation