Redox Equations Worksheet
A Grade 10 Science worksheet focusing on understanding and balancing redox equations, identifying oxidation and reduction, and determining oxidation states.
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Redox Equations Worksheet
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Read each question carefully and provide clear, concise answers. Show all your work for calculations and balancing equations.
Redox reactions involve the transfer of electrons between species. Oxidation is the loss of electrons, and reduction is the gain of electrons. Use the mnemonic OIL RIG (Oxidation Is Loss, Reduction Is Gain) to remember this.
The rusting of iron, as shown in the image above, is a common example of a redox reaction.
1. Which process involves the gain of electrons?
Oxidation
Reduction
Neutralization
Precipitation
2. In the reaction 2Na + Cl₂ → 2NaCl, what is oxidized?
Na
Cl₂
NaCl
Both Na and Cl₂
3. An oxidizing agent is a substance that causes , and itself gets .
4. The oxidation number of an uncombined element is always .
5. Define oxidation state and explain how it's used to identify redox reactions.
6. For the following reaction, identify the element being oxidized and the element being reduced: Zn(s) + CuSO₄(aq) → ZnSO₄(aq) + Cu(s)
Match the term with its definition.
7. Oxidation
a. Gain of electrons
8. Reduction
b. Loss of electrons
9. Reducing Agent
c. Causes reduction, gets oxidized
10. Balance the following redox reaction in acidic medium: MnO₄⁻(aq) + Fe²⁺(aq) → Mn²⁺(aq) + Fe³⁺(aq)
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