Carbon has +2 oxidation number in Carbon monoxide. It gets this oxidation number when it loses or shares two electrons.
Carbon atoms oxidation number is +2.Hydrogen's oxidation number is +1.Oxygen's oxidation number is -2.
I believe K2CO3.
Oxidation number is +2 for Zn+2 ion
+2
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.
Carbon atoms oxidation number is +2.Hydrogen's oxidation number is +1.Oxygen's oxidation number is -2.
I believe K2CO3.
Oxidation number is +2 for Zn+2 ion
The oxidation number is + for C and -2 for O.
+2
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.
The central carbon atom has an oxidation number of -2 (O is -2, H is +1)
carbon suboxide C3O2 OCCCO. The oxygen atoms have an oxidation number of -2 same as normal, (only when O is bonded to O as in peroxides is the oxidation number not -2)
Nitrogen's oxidation number is -4.Carbon's oxidation number is +3.The cyanide ion has -1 charge. Nitrogen is in -3 state. By balancing the charges: the oxidation number of carbon is +4.
oxidation number of S is +6.It oxidize into SO4 ^-2
Formaldehyde is a aldehyde. Oxidation number of C is +2.
The oxidation number of H is +1 and the oxidation numbers of each carbon are +3