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The oxidation state of an individual sulfur atom in BaSo4 is +6.
The oxidation state of an individual sulfur atom in MgSO4 is +6.
The oxidation state of an individual sulfur atom in (SO3)2- is 4.
in CaCO3 carbon is in the 4+ oxidation state.
+1 for K -2 for each O +5 for N
There are no nitrogen atoms in CaCO3!
5+
The oxidation state of N in HNO3 is +5. Oxygen is -2 and H is +!.
The oxidation state of an individual sulfur atom in BaSo4 is +6.
The oxidation state of an individual sulfur atom in MgSO4 is +6.
The oxidation state of an individual sulfur atom in (SO3)2- is 4.
+5
in CaCO3 carbon is in the 4+ oxidation state.
+1 for K -2 for each O +5 for N
This is an atom of nitrogen-15 and oxidation state -3.
This is an atom of nitrogen-15 and oxidation state -3.
There are NO carbon (C) atoms in potassium nitrate (KNO3). B.t.w. atoms always have an oxidation state to be zero.