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Indicate whether the following balanced equations involve oxidation- reduction. If they do, identify the elements that undergo changes in oxidation number.
a) PBr3 (l) + 3 H2O (l) → H3PO3 (aq) + 3 HBr (aq)
b) NaI (aq) + 3HOCl (aq) → NaIO3 (aq) + 3HCl (aq)
c) 3SO2 (g) + 2 HNO3(aq) +2H2O (l)→ 3 H2SO4(aq) + 2 NO(g)
One Class Solution:-
Reaction a) is not redox reaction
Reaction b) is redox reaction.
-1 +5
I- → IO5-
Cl+1 → Cl-1
Reaction C) is redox reaction.
+4 +6 +5 +2
SO2 → SO42- NO3- → NO
Indicate whether the following balanced equations involve oxidation- reduction. If they do, identify the elements that undergo changes in oxidation number.
a) PBr3 (l) + 3 H2O (l) → H3PO3 (aq) + 3 HBr (aq)
b) NaI (aq) + 3HOCl (aq) → NaIO3 (aq) + 3HCl (aq)
c) 3SO2 (g) + 2 HNO3(aq) +2H2O (l)→ 3 H2SO4(aq) + 2 NO(g)
One Class Solution:-
Reaction a) is not redox reaction
Reaction b) is redox reaction.
-1 +5
I- → IO5-
Cl+1 → Cl-1
Reaction C) is redox reaction.
+4 +6 +5 +2
SO2 → SO42- NO3- → NO
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Jean KeelingLv2
27 May 2020
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