Cu is copper. Copper is a common transition metal, #29 on the Periodic Table. Its symbol is Cu because the ancient name for it was "cuprum."
The chemical formula for copper is Cu
The chemical formula for copper nitrate is: Cu(II)(NO2)2 OR Cu(I)NO2
Cu2O. Cuprous is Cu+, cupric is Cu2+. Those are old-school names. Copper(I) oxide is a better name.
Formula: Cu
This chemical compound is copper nitrate.
Cu(NO3)2 is the chemical formula for Copper II Nitrate.
The chemical formula is: Cu(NO3)2.
Formula: Cu(OH)2
The chemical formulas of copper nitrates are: CuNO3 and Cu(NO3)2.
Copper
Cu the ion of copper is generally Cu 2+
The chemical formula of cupric nitrate is Cu(NO3)2.