Practice Oxidation States And Half-equations (8.1)

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6 sample questions

Question 1.
Define oxidation and give an example.
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Think about what happens to zinc in terms of electron loss.
Question 2.
What is a reducing agent?
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Consider what substance does the oxidizing.
3Question 3.
What happens during oxidation?
- Gain of electrons
- Loss of electrons
- No electron transfer
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Consider the mnemonic OIL RIG.
4Question 4.
True or False: Reduction increases the oxidation state.
- True
- False
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Think about the effect of gaining electrons.
Question 5.
A compound contains iron in the +3 oxidation state and sulfur in the -2 oxidation state. Identify the compound and balance the redox reaction involving the conversion of this compound into iron sulfate.
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Start by identifying oxidation changes.
Question 6.
Write balanced half-equations for the oxidation of Fe²⁺ to Fe³⁺ and reduction of Cr₂O₇²⁻ to Cr³⁺ in acidic medium.
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Focus on balancing the charges and atoms.

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