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Preview questions
1. What does the term 'oxidation' refer to in a redox reaction?
Gain of electrons · Loss of electrons · Gain of protons · Loss of protons
2. In a redox reaction, the substance that gets reduced is called the:
Oxidizing agent · Reducing agent · Reactant · Product
3. Which of the following is a characteristic of a reducing agent?
Gains electrons · Loses electrons · Gains protons · Loses protons
4. What is the oxidation state of oxygen in H2O?
-2 · 0 · +1 · +2
5. In the reaction 2Mg + O2 → 2MgO, which element is oxidized?
Magnesium · Oxygen · Both magnesium and oxygen · Neither
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