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In the reaction Zn + CuSO₄ → ZnSO₄ + Cu, what happens to copper (Cu)?
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Copper (Cu) is reduced (Cu²⁺ → Cu)
Identify the changes in oxidation states for zinc and copper in the reaction Zn + CuSO₄ → ZnSO₄ + Cu.
Zinc: 0 to +2, Copper: +2 to 0
Write the half equation for the reduction of sulfur.
S + 2e⁻ → S²⁻
Write the half equation for the oxidation of aluminum.
Al → Al³⁺ + 3e⁻
What is the definition of reduction?
Gain of electrons
In the half equation Mg → Mg²⁺ + 2e⁻, what is happening to Mg?
Mg is oxidized (loses electrons)
In the reaction Zn + CuSO₄ → ZnSO₄ + Cu, what happens to zinc (Zn)?
Zinc (Zn) is oxidized (Zn → Zn²⁺)
Write the half equation for the oxidation of magnesium.
Mg → Mg²⁺ + 2e⁻
How would you describe a more reactive element's behavior in a displacement reaction based on electron movement?
A more reactive element will lose electrons (oxidized) to displace a less reactive element from its compound which gains electrons (reduced)
Provide an example of a displacement reaction involving magnesium (Mg) and iron oxide (Fe₂O₃). Who is oxidized and who is reduced?
Mg displaces Fe from Fe₂O₃. Mg is oxidized (gains oxygen), while Fe is reduced (loses oxygen)
What is the definition of oxidation?
Loss of electrons
In a displacement reaction, what happens to the more reactive element?
It displaces a less reactive element from its compound
What does the acronym OIL RIG stand for?
Oxidation Is Loss (of electrons), Reduction Is Gain (of electrons)
In the half equation S + 2e⁻ → S²⁻, what is happening to S?
S is reduced (gains electrons)
What is a half equation?
An equation that shows the electron transfer process in a reaction
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