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Carbonate is CO32- ion and the oxidation numbers are +4 for carbon and -2 for each oxygen.
Carbon = +4 Oxygen = -2
The oxidation number is +2 for Ni.
-2 for each O, +4 for C
Carbon has an oxidation number of +4 in both carbonate and bicarbonate. Oxygen as usual has an oxidation number of -2, and hydrogen has an oxidation number of +1. Therefore, the ion CO3-2 has six negative charges from oxygen partly balanced by four positive changes from carbon for a net of -2, and HCO3-1 has six negative charges from oxygen partly balanced by one positive from hydrogen and needs for plus four from carbon for an overall value of -1.
Carbonate is CO32- ion and the oxidation numbers are +4 for carbon and -2 for each oxygen.
Carbon = +4 Oxygen = -2
The oxidation number is +2 for Ni.
-2 for each O, +4 for C
In the carbonate CO32- the sum of the oxidation numbers is the ionic charge (true for all poyatomic ions) O is assigned -2 so C has +4. (maths 4 +(-6) = -2)
Br-
I believe K2CO3.
Carbon has an oxidation number of +4 in both carbonate and bicarbonate. Oxygen as usual has an oxidation number of -2, and hydrogen has an oxidation number of +1. Therefore, the ion CO3-2 has six negative charges from oxygen partly balanced by four positive changes from carbon for a net of -2, and HCO3-1 has six negative charges from oxygen partly balanced by one positive from hydrogen and needs for plus four from carbon for an overall value of -1.
Carbonate ions are double negatively charged (2-)CO32-
There are three equivalent Lewis structures for CO32.
metal ions and carbonate ions, CO32-.Fro example:-sodium carbonate Na2CO3, 2Na+ CO32-calcium carbonate, CaCO3, Ca2+ CO32-
CO32- is trigonal planar, bond angles are 1200