Indicate each of the following as an oxidation or a reduction: 1.Na+( a q )+ e ?
ID: 850631 • Letter: I
Question
Indicate each of the following as an oxidation or a reduction:
1.Na+(aq)+e??Na(s)
2.Ba(s)?Ba2+(aq)+2e?
3.Cr3+(aq)+3e??Cr(s)
4.2H+(aq)+2e??H2(g)
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In the following reactions, identify what is oxidized, and what is reduced.
1. Zn(s)+Cl2(g)?ZnCl2(s)
2.Cl2(g)+2NaBr(aq)?2NaCl(aq)+Br2(g)
3.2PbO(s)?2Pb(s)+O2(g)
4.2Fe3+(aq)+Sn2+(aq)?2Fe2+(aq)+Sn4+(aq)
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Identify each of the following reactions as an oxidation or reduction:
1.Fe3++e??Fe2+
2.Fe2+?Fe3++e?
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When linoleic acid, an unsaturated fatty acid, reacts with hydrogen, it forms a saturated fatty acid. Is linoleic acid oxidized or reduced in the hydrogenation reaction?
C18H32O2+2H2?C18H36O2
Explanation / Answer
1.Na+(aq)+e?......> Na(s)...........reduction
2.Ba(s).......>Ba2+(aq)+2e- .......... oxidation
3.Cr3+(aq)+3e- ......> Cr(s)..........reduction
4.2H+(aq)+2e-...........> H2(g)......... reduction
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oxidized, and what is reduced.
1. Zn(s)+Cl2(g).......> ZnCl2(s)
oxidized...Zn
reduced....Cl2
2.Cl2(g)+2NaBr(aq).....>2NaCl(aq)+Br2(g)
oxidized...Br
reduced....Cl2
3.2PbO(s)........>2Pb(s)+O2(g)
oxidized...O
reduced....Pb
4.2Fe3+(aq)+Sn2+(aq)......>2Fe2+(aq)+Sn4+(aq)
oxidized...Sn^+2
reduced.... Fe^+3
1.Fe3+ + e-...>Fe2+ ........ reduction
2.Fe2+........>Fe3++e- .......... oxidation
C18H32O2+2H2.............> C18H36O2
reduction