CHAPTER 5: Chemical Formula and Chemical Equations

Identify the correct name and chemical formula for the substance below.

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Predict the formula for the compound made up from sodium ion and carbonate ion.

• NaCO3

• Na3CO3

• Na2CO2

• Na2CO3

Identify the correct formula for hydrogen phosphate ion.

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Identify the IUPAC name for CS₄

• Carbon sulfide

• Monocarbon tetrasulfide

• Carbon tetrasulfide

• Carbon (IV) sulfide

Predict the formula for the compound made up from sodium ion and carbonate ion.

• Na₂CO₃

• NaCO₃

• Na₃CO₃

• Na₂CO₂

Give the chemical formula for diphosphorus pentoxide covalent compound

Indicate the incorrect balanced chemical equation.

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Name the Br₂O₇ covalent compound

• Dibromo tetroxide

• Dibromo pentoxide

• Dibromo heptoxide

• Bromo decoxide

Find the correct formula for potassium chromate.

• K₂CrO

• KCrO

• K₂CrO₄

• KCr₂O₂

The ionic formula for X oxide is X₂O₃. Find the ionic formula for the compound formed when

X reacts with phosphate.

• X3(PO4)2

• XPO4

• X2(PO4)3

• X2PO4