Question detail
Write the ionic half equation for the oxidation of zinc ions (Zn^2+) to zinc metal (Zn).
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
Question
Type
exam_style
Style
Topic
Reactivity of metals
Question
Write the ionic half equation for the oxidation of zinc ions (Zn^2+) to zinc metal (Zn).
Answer
Zn^2+ + 2e^- → Zn
Explanation
This answer demonstrates the understanding of oxidation as the loss of electrons, specifically showing how zinc ions gain electrons to form zinc metal. The question tests the ability to write an ionic half equation for an oxidation process.
Common mistake
Common Mistake in Writing Ionic Half Equations
Students often confuse oxidation and reduction half equations, writing the wrong species as oxidised or reduced.
To fix this, remember that oxidation involves loss of electrons and reduction involves gain of electrons. Carefully identify the charges and species involved before writing the half equations.
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