1. Assign an oxidation number to each atom in the reactants. 2CO( g )+O2( g )2CO
ID: 1052241 • Letter: 1
Question
1. Assign an oxidation number to each atom in the reactants.
2CO(g)+O2(g)2CO2(g)
Express your answers as signed integers separated by commas. For example: +1, +2, +3.
2. Assign an oxidation number to each atom in the products.
2CO(g)+O2(g)2CO2(g)
Express your answers as signed integers separated by a comma. For example: +1, +2.
3.
Assign an oxidation number to each atom in the reactants.
CuO(s)+2HCl(aq)CuCl2(aq)+H2O(l)
Express your answers as signed integers separated by commas. For example: +1, +2, +3.
4.
Assign an oxidation number to each atom in the products.
CuO(s)+2HCl(aq)CuCl2(aq)+H2O(l)
Express your answers as signed integers separated by commas. For example: +1, +2, +3.
5.
Assign an oxidation number to each atom in the reactants.
2MnO4(aq)+5SO2(g)+2H2O(l)2Mn2+(aq)+5SO42(aq)+4H+(aq)
Express your answers as signed integers separated by commas. For example: +1, +2, +3.
6.
Assign an oxidation number to each atom in the products.
2MnO4(aq)+5SO2(g)+2H2O(l)2Mn2+(aq)+5SO42(aq)+4H+(aq)
Express your answers as signed integers separated by commas. For example: +1, +2, +3.
Explanation / Answer
2CO(g)+O2(g)2CO2(g)
(+2)(-2) 0 (+4) (-4)
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CuO(s)+2HCl(aq)CuCl2(aq)+H2O(l)
(+2)(-2) (+1)(-1) (+2)(-1) (+1)(-2)
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2MnO4(aq)+5SO2(g)+2H2O(l)2Mn2+(aq)+5SO42(aq)+4H+(aq)
(+7)(-2) (+4)(-2) (+1)(-2) (+2) (+6)(-2) (+1)
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