Common Formulas of Compounds

What is the formula for sodium nitrate?

• Na₃NO
• NaNO
• Na₃NO₃
• NaNO₃

What is the formula for copper(I) sulfate?

• CuSO₃
• CuSO₄
• Cu₂SO₃
• Cu₂SO4

What is the formula for iron(II) carbonate?

• Fe₂CO₃
• FeCO₃
• Fe₂CO₂
• FeCO4

What is the formula for calcium carbonate?

• CaCO
• CaCO₂
• CaCO₃
• Ca₃CO₃

What is the formula for magnesium chloride?

• MgCl
• Mg₂Cl
• MgCl₂
• Mg(ClO₃)₂

What is the formula for magnesium phosphide?

• Mg₃P₂
• Mg₂P₃
• Mg₂PO₃
• Mg₃(PO₃)₂

Tags

NGSS.HS-PS1-2

Because the overall charge in a compound must be ____________, the charge of iron in Fe₂O₃ must be 3⁺.

• 2⁺
• 1⁺
• 0
• 1^-

In the compound TiO₂, titanium has a charge of

• 4⁺
• 2⁺
• 2^-
• 4^-

The chemical formula for an ionic compound of potassium and oxygen is

• KO.
• K₂O.
• K₂O₂.
• KO₂.

The first step in naming an ionic compound is always...

• Naming the anion
• Changing the ending to -ide
• Naming the cation
• Writing the cation charge