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-2. oxygen as oxide is always -2 (it is notionally present as O2- )

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In the following compound al2o3 aluminums oxidation number is plus 3 and oxygen's oxidation number is?

-2


What is the usual oxidation number for oxygen in a compound?

The usual oxidation state for oxygen in a compound is -2.


In the compound Co2O3 cobalt has an oxidation number of while oxygen's oxidation number is -2.?

In the compound Co2O3 cobalt has an oxidation number of 3 while oxygen has an oxidation number is -2.


In the compound Fe2O3 iron's oxidation number is plus 3 and oxygen's oxidation number is .?

Usually, oxygen has an oxidation of -2 (that is unless in a compound with peroxides or halogens).


In the compound Al aluminum's oxidation number is plus 3 and oxygen's oxidation number is?

In the compound Al₂O₃, aluminum has an oxidation number of +3, and oxygen has an oxidation number of -2. This gives a total charge of zero for the compound, as it should be electrically neutral.


What is the usual oxidation number of an oxygen and of hydrogen?

Usually the oxidation no of oxygen is -2 and the oxidation no of hydrogen is +1 in a compound.


What is the oxidation number of P in PO?

Are you thinking of a phosphorus oxide (PO) or elemental metal polonium 'Po'. ???? If you are thinking of an oxide of phosphorus , then the chemical formula is P2O5, or its dimer P4O10; (PO) does NOT exist . If you are thinking of the elemental metal polonium , then the chemical symbol is 'Po'. Note the small case 'o'. Polonium is a highly radio-active and poisonous metal, and is kept in a very secure environment.


What isThe oxidation number of mn in kmno4?

The oxidation number of Mn in KMnO4 is +7. This is because oxygen (O) is typically assigned a -2 oxidation state, with the total oxidation state of the compound being 0. By following the rule that the sum of oxidation states in a compound is equal to the charge of the compound, we find that Mn is in the +7 oxidation state in KMnO4.


What are the oxidation numbers of the elements in the following compound of Fe2O3?

The oxidation number of Fe in Fe2O3 is +3 because oxygen typically has an oxidation number of -2 and there are 3 oxygen atoms for every 2 iron atoms in the compound, making the overall charge -6 for oxygen. To balance the charges, each iron atom must have a charge of +3.


In the compound Ni2O3 nickels oxidation number is and oxygens oxidation number is -2?

In Ni2O3, since oxygen has an oxidation number of -2 and there are three oxygen atoms, the total oxidation number contributed by oxygen is -6. Since the compound as a whole is neutral, the total oxidation number must be 0. Therefore, the oxidation number of nickel (Ni) in Ni2O3 is +3 to balance out the oxidation number from oxygen.


In the compound Fe 202 irons oxidation number is while oxygen jobs at addition numbers -2?

In the compound Fe2O3, iron has an oxidation number of +3 because oxygen typically has an oxidation number of -2. Iron needs two atoms of oxygen to balance its +6 oxidation state, hence the compound with the formula Fe2O3.


In the compound Co2O3 cobalt has an oxidation number of what?

Cobalt has an oxidation number of 3 (III) in the compound Co2O3.