Ions

OH-

• hydroxide ion
• chloride ion
• oxygen ion
• hydrogen ion

MnO₄^-

• Permanganate ion
• Manganese dioxide
• Magnesium oxide
• Manganese oxide

H₃O⁺

• Hydroxide ion
• Oxygen ion
• Hydronium ion
• Water molecule

What is the chemical formula for nitrate ion?

• NO3-

• NO2-

• N2O5

• N2O4

Which of the following is a carbonate ion?

• CO3^2-

• ClO3-

• SO4^2-

• PO4^3-

What is the chemical formula for sulfate ion?

• SO4^2-

• SO3^2-

• S2O8^2-

• S2O3^2-

What is the chemical formula for phosphate ion?

• PO4^3-

• PO3^3-

• P2O5^3-

• P2O7^3-

Which of the following is a sulfite ion?

• SO3^2-

• SO4^2-

• SO5^2-

• SO2^2-

What is the chemical formula for cyanide ion?

• CN-

• CO3^2-

• ClO3-

• PO4^3-

Which of the following is a chromate ion?

• CrO4^2-

• Cr2O7^2-

• CrO3^2-

• CrO2^2-