2.1 - Change in Colour
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Practice Questions
Test your understanding with targeted questions
What does a color change indicate in a chemical reaction?
💡 Hint: Think about whether substances change when there's color change.
What color is copper sulfate solution?
💡 Hint: Recall the common color associated with copper compounds.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does a fading blue color in a chemical reaction indicate?
💡 Hint: Think about what happens during the reaction!
True or False: Color change can indicate whether a chemical reaction is happening.
💡 Hint: Recall the indicators of chemical reactions we've discussed.
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Challenge Problems
Push your limits with advanced challenges
In an experiment, a student observes that the blue color of copper sulfate fades after adding an iron nail. Explain the chemical process happening at a molecular level and why color changes are significant.
💡 Hint: Consider the reactants and the products and how the molecular structures change.
A scientist mixes two clear solutions that yield a bright orange precipitate. Discuss the role of color change in identifying the reaction and the products formed.
💡 Hint: Think about how the visibility of the product helps link back to the reactions that produced it.
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