Cu2+ is a cation as are all positive ions. One way to remember is to think of the "t" in cation as a plus sign.
O-2 is an anion.
The cation of K2CO3 is potassium (K+) and the anion is carbonate (CO3^2-).
Cu(NO2)3 doesn't exist, but Cu(NO2)2 does. It is ionic, even though the NO2 anion is covalent.
The chemical formula for the cation in the compound Cr(CO3)2 is Cr2 and for the anion is CO32-.
The chemical formula for zinc cation is Zn^2+ and for acetate anion is CH3COO-. Therefore, when these two ions combine, the chemical formula for zinc cation with acetate anion is Zn(CH3COO)2.
O-2 is an anion.
The cation of K2CO3 is potassium (K+) and the anion is carbonate (CO3^2-).
The blue color of copper salt solutions such as copper nitrate are due to the copper cation.
Magnesium sulfate is a salt; Mg2+ is the cation and (SO4)2- is the anion.
Cu(NO2)3 doesn't exist, but Cu(NO2)2 does. It is ionic, even though the NO2 anion is covalent.
No, it's a cation. Cat(ion)s have Paws(itive charges) Cats Have Paws
The chemical formula for the cation in the compound Cr(CO3)2 is Cr2 and for the anion is CO32-.
The chemical formula for zinc cation is Zn^2+ and for acetate anion is CH3COO-. Therefore, when these two ions combine, the chemical formula for zinc cation with acetate anion is Zn(CH3COO)2.
Calcium chloride is a salt; calcium is the cation and chloride the anion.
Chromate is an divalent anion with formula CrO4-2
It is NEITHER an Acid NOR a base, but a '(Chemical) Salt'. A Chemical Salt is any substance composed of a metal cation, and an acidic anion. The pH is ~ 7. Copper Sulphate is Cu^(2+) the metal cation and SO4^(2-) the acidic anion. NB Table Salt, that you use at home, is also a chemical salt, because it is composed of Na^(+) the metal cation and Cl^(-) the acidic anion. . Again the pH ~ 7 when dissolved in water. et seq.,
Selenium is an non-metal element that can exist in various oxidation states, including as a cation (Se^2+) or an anion (Se^2-, Se^4-, etc.). The oxidation state of selenium determines whether it acts as a cation or anion in a given compound.