Consider Zn?\"(aq) Mgls)Mg (ag)Znís) Zn\"(aq) +2e- 22n(s), Eo=-0.76 V F= 96485 ;

Question

Consider Zn?"(aq) Mgls)Mg (ag)Znís) Zn"(aq) +2e- 22n(s), Eo=-0.76 V F= 96485 ; R: 8.314 1. Is the above a REDOX reaction? 2. What has been oxidized? S 3. What has been reduced? 4. What is the oxidizing agent? Mg 5. What is the reducing agent? 1A 6. what is the anode reaction?- 7. What is the cathode reaction? 8. Calculate the Ecel ce 9. Is this reaction spontaneous? Explain 10. Calculate the equilibrium constant, K at 25 °C Which of the following is(are) REDOX reactions? 11. H2O2 + Fe2+--) Fe3t + H2O 12. Pb(NO3)2(aq) + 2HCI (aq)--PbClz(s) + 2HNOlaq) 13. Mg(s) 2HCI(aq) MgClh(aq) +H2lg) 14, 2CO(g) +02(g)--2CO2(g) -/es 15. Caco,(s) CaO(s) + CO2(g).

Explanation / Answer

Loss of electrons is called as an oxidation. Gain of electrons is known as reduction.

The substance which causes oxidation of another substance is the oxidizing agent.

The substance which causes reduction of another substance is the reducing agent.

1. Yes, the given reaction is a redox reaction (transfer of electrons).

2. Zn is oxidized.

3. Mg is reduced.

4. Zn is oxidizing agent.

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