2.3 - Examples of Chemical Changes
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Practice Questions
Test your understanding with targeted questions
What is a chemical change?
💡 Hint: Think about what happens when iron rusts.
Is melting ice a chemical change?
💡 Hint: Consider if the ice can turn back into water.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is a key sign of a chemical change?
💡 Hint: Remember examples like fizzing when vinegar combines with baking soda.
True or False: Rusting is a physical change.
💡 Hint: Consider if the iron returns to its original state.
2 more questions available
Challenge Problems
Push your limits with advanced challenges
Explain the chemical reaction that occurs when vinegar and baking soda are mixed. What are the products, and what signs indicate a chemical change?
💡 Hint: What do you see and hear when they react?
Calculate how long it would take for a piece of iron to rust completely in different environmental conditions (dry, humid). Consider changes in temperature and moisture.
💡 Hint: Research common conditions for rusting.
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