Practice The Half-reaction Method (5.1) - Redox Reactions - IB 10 Sciences (Group 4)

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6 sample questions

Question 1.
What is oxidation in a redox reaction?
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Think of OIL RIG.
Question 2.
What does the term reduction mean?
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It complements oxidation.
3Question 3.
What does the term 'oxidation' refer to in redox reactions?
- Gain of electrons
- Loss of electrons
- No change
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Refer back to our discussion about OIL RIG.
4Question 4.
True or False: In every redox reaction, one species is oxidized and another is reduced.
- True
- False
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Remember the definition of redox!
Question 5.
Given the reaction Fe²⁺ + MnO₄⁻ → Fe³⁺ + Mn²⁺ in an acidic solution, write the balanced half-reactions.
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Balance elements, then charge by adding electrons.
Question 6.
You have the reaction Cu + AgNO₃ → Cu(NO₃)₂ + Ag. Identify oxidation and reduction, then write half-reactions.
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What happens to the oxidation states of Cu and Ag?

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