Writing Formulas Quiz

What is the charge for a nitrogen ion?

• +1

• +3

• -1

• -3

What is the charge for a calcium ion?

• +2

• -2

• +1

• -1

What is the correct formula for magnesium fluoride?

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What is the correct formula for sodium oxide?

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What is the correct formula for dinitrogen tetroxide?

• N₃O₃
• (N₂)₂(O₄)₃
• N₂O₄
• N₄O₂

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

• KO.
• K₂O.
• K₂O₂.
• KO₂.

The chemical formula of magnesium hydroxide is

• MgOH₂
• Mg(OH)₂
• Mg(OH)
• MgH₂

The chemical formula of Iron (III)bromide is

• FeBr
• Fe(III)Br
• FeBr₃
• Fe₂Br₃

The correct chemical formula for magnesium phosphide is

• MgP
• Mg₂P₃
• Mg₃P₂
• Mg₃(PO₄)₂

The chemical compound for sodium phosphate would be:

• NaPO₄
• Na₂PO₄
• Na₃PO₄
• Na(PO₄)₃