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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What does a chemical reaction involve?
💡 Hint: Think about what happens to substances in a reaction.
Question 2
Easy
Give an example of an exothermic reaction.
💡 Hint: What reaction produces heat?
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 do reactants transform into during a chemical reaction?
- Products
- Substrates
- Ingredients
💡 Hint: Think about the outcome of a reaction.
Question 2
True or False: A chemical reaction always involves a color change.
- True
- False
💡 Hint: Consider various reactions carefully.
Solve 3 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Describe the reaction that takes place when iron rusts and propose two methods to prevent it.
💡 Hint: Think about what rust consists of and how it forms.
Question 2
How would you balance the chemical equation for photosynthesis? Write the unbalanced equation and then balance it.
💡 Hint: Count atoms on both sides and ensure equality.
Challenge and get performance evaluation