I don‘t understand why it‘s copper 2, why not copper one?I also have questions like this:Be(ClO)(sub 2 after ClO)?andCadmium Sulfite?I have a sheet that says for most of the elements for example aluminum-Aluminum Al 27.0 +3
The proper way to name compounds like this is to indicate the charge of each metal ion with a roman numeral. So, Cu2O is copper (I) oxide. You don't need to say dicopper because you know that you have to have two Cu+ ions to balance the -2 charge of the oxygen ion. Copper (II) oxide has the formula CuO.
The valence or oxidation number of one oxygen atom found in CuO is always -2, and the overall charge on any chemical compound is always zero. So what number can you add to a -2 to make it a zero. Got to be a plus 2, so that is why CuO is copperII oxide. If you saw, Cu2O, you would know that oxygen has a - 2 charge, the whole compound Cu2O is neutral, so both Cu atoms together must have a total charge of +2, and each Cu atom must be a + 1 so we call this compound, Copper I oxide, old name was Cuprous oxide, and the old name for Copper II oxide was Cupric oxide.
The proper way to name compounds like this is to indicate the charge of each metal ion with a roman numeral. So, Cu2O is copper (I) oxide. You don't need to say dicopper because you know that you have to have two Cu+ ions to balance the -2 charge of the oxygen ion. Copper (II) oxide has the formula CuO.
The valence or oxidation number of one oxygen atom found in CuO is always -2, and the overall charge on any chemical compound is always zero. So what number can you add to a -2 to make it a zero. Got to be a plus 2, so that is why CuO is copperII oxide. If you saw, Cu2O, you would know that oxygen has a - 2 charge, the whole compound Cu2O is neutral, so both Cu atoms together must have a total charge of +2, and each Cu atom must be a + 1 so we call this compound, Copper I oxide, old name was Cuprous oxide, and the old name for Copper II oxide was Cupric oxide.
In CuO, oxygen (O) has a -2 charge on it that means Copper (Cu) must have a +2 charge to balance the compound
In CuO, oxygen (O) has a -2 charge on it that means Copper (Cu) must have a +2 charge to balance the compound
