8.6 - Identification in Reactions
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Practice Questions
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What happens to electrons in oxidation?
💡 Hint: Think about the meaning of oxidation.
Which process involves gaining electrons?
💡 Hint: Remember, reduction is 'gain'.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does a redox reaction always involve?
💡 Hint: Think about what is being transferred.
When an element is oxidized, what happens to its oxidation state?
💡 Hint: Remember the definition of oxidation.
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Challenge Problems
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Analyze the reaction 4Al + 3O₂ → 2Al₂O₃. Identify oxidized and reduced substances, and explain your reasoning.
💡 Hint: Track the changes in oxidation state for each atom.
In the reaction Cr₂O₇²⁻ + 14H⁺ + 6e⁻ → 2Cr³⁺ + 7H₂O, identify the reducing agent and the products.
💡 Hint: Check which substance donates electrons and determine the products formed.
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