Practice Identification In Reactions (8.6) - Redox Reactions

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6 sample questions

Question 1.
What happens to electrons in oxidation?
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Think about the meaning of oxidation.
Question 2.
Which process involves gaining electrons?
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Remember, reduction is 'gain'.
3Question 3.
What does a redox reaction always involve?
- A transfer of protons
- A transfer of neutrons
- A transfer of electrons
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Think about what is being transferred.
4Question 4.
When an element is oxidized, what happens to its oxidation state?
- True
- False
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Remember the definition of oxidation.
Question 5.
Analyze the reaction 4Al + 3O₂ → 2Al₂O₃. Identify oxidized and reduced substances, and explain your reasoning.
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Track the changes in oxidation state for each atom.
Question 6.
In the reaction Cr₂O₇²⁻ + 14H⁺ + 6e⁻ → 2Cr³⁺ + 7H₂O, identify the reducing agent and the products.
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Check which substance donates electrons and determine the products formed.

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