Polyatomic Ions (status: Incomplete)

Cyanide is represented by the chemical formula CN (1-), not by the incorrect options provided. The chemical formula CN (1-) indicates that cyanide consists of one carbon atom and one nitrogen atom with a charge of -1.

Thiocyanate is an anion with a formula of SCN (1-), consisting of one sulfur atom, one carbon atom, and one nitrogen atom bonded together with a negative charge.

The hydroxide ion is composed of one oxygen atom and one hydrogen atom with a charge of -1, represented by the chemical formula OH(1-).

Nitrate is a polyatomic ion consisting of one nitrogen atom and three oxygen atoms with a negative charge of 1-.

Nitrite is typically represented by the chemical formula NO2 (1-), indicating one nitrogen atom and two oxygen atoms with a charge of -1.

Acetate is a ion with a formula of C2H3O2 (1-), commonly found in vinegar and used in chemical reactions.

Permanganate is represented by the chemical formula MnO4 (1-), which consists of one manganese atom (Mn) bonded to four oxygen atoms (O) with a charge of -1.

Perchlorate is a polyatomic ion composed of one chlorine atom and four oxygen atoms with a charge of 1-.

Chlorate is a polyatomic ion with a charge of 1-, composed of one chlorine atom and three oxygen atoms.

Chlorite is the anion with the chemical formula ClO2 (1-). It is different from ClO3 (chlorate), ClO4 (perchlorate), and ClO (hypochlorite).

Hypochlorite is the anion with the chemical formula ClO, carrying a -1 charge.

The correct chemical formula for hydrogencarbonate (or bicarbonate) is HCO3 (1-), which represents the bicarbonate ion consisting of one hydrogen atom, one carbon atom, and three oxygen atoms with a charge of -1.