Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is a half-equation?
💡 Hint: Think about how oxidation and reduction are represented separately.
Question 2
Easy
Why do we balance H⁺ ions in acidic conditions?
💡 Hint: Look at how hydrogen emerges from water, and what is used to balance it.
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Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What does oxidation refer to in a redox reaction?
- Gain of electrons
- Loss of electrons
- No change
💡 Hint: Remember the acronym OIL RIG.
Question 2
True or False: Balancing charges requires that we add electrons.
- True
- False
💡 Hint: Think about how we can neutralize charge differences.
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Challenge Problems
Push your limits with challenges.
Question 1
Balance the reaction: IO₃⁻ + C₂O₄²⁻ → I⁻ + CO₂ in acidic solution.
💡 Hint: Follow steps precisely, maintaining focus on electron transfer.
Question 2
Consider the reaction Cr₂O₇²⁻ + SO₃²⁻ → Cr³⁺ + SO₄²⁻. What are the steps involved in balancing it?
💡 Hint: Pay attention to charge and how many electrons are involved in each reaction.
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