Polyatomic Ions: Chemical Formulas

What is the chemical formula for the nitrate ion?

• NO3-

• H2O

• N2O

• CO2

What is the chemical formula for the sulfate ion?

• SO2^2-

• SO4^2-

• SO3^2-

• SO5^2-

What is the chemical formula for the carbonate ion?

• CH4

• H2O

• CO3^2-

• CO2

What is the chemical formula for the hydroxide ion?

• CO2

• NaCl

• OH⁻

• H2O

What is the chemical formula for the phosphate ion?

• P3O4

• PO3

• PO4^3-

• PO4^2-

What is the chemical formula for the ammonium ion?

• NaCl

• NH4+

• H2O

• CO2

What is the chemical formula for the cyanide ion?

• CO2

• H2O

• NaCl

• CN-

What is the chemical formula for the acetate ion?

• H2O

• CO2

• NaCl

• CH3COO- or C2H3O2-

What is the chemical formula for the permanganate ion?

• MnO5

• MnO3

• MnO2

• MnO4-

What is the chemical formula for the chlorate ion?

• ClO+

• ClO2-

• ClO3-

• ClO4-