LTC3 Review

The correct name for the compound with the formula Fe₂O₃ is

• iron(III) oxide

• iron oxide

• triiron oxide

The IUPAC name for the compound with the formula (NH₄)₃NO₄

(IUPAC naming is the process we use to name compounds)

• ammonium nitrate.

• triphsphate nitrate

• ammonium (III) nitrate

The names for the compounds FeO and Fe2O3.  Explain why the names help identify the chemical formulas. 

1. FeO: Iron(II) oxide

2. Fe2O3: Iron(III) oxide

• • Roman numerals indicate the oxidation state (charge) of the metal in the compound.

• • Roman numerals indicate the coefficient of the metal in the compound.

• The names don't identify the formulas.

What is the chemical formula of cobalt(II) carbonate?

• Co(CO₃)₂

• Co2(CO₃)₂

• 2Co(CO₃)

The correct chemical formula for magnesium fluoride is

• MgF₂

• 2MgF₂

• Mg2F

What is the formula for copper (I) oxide?

• Cu₂O

• 2Cu₂O

• CuO2

What is the formula for sodium fluoride?

• NaF

• Na (I) F

• sodium monoflouride

The chemical formula for carbon tetrachloride is ___

• CCl₄

• C4Cl

• 4CCl

The balanced form of the equation NH3 + O2 ↔ NO + H2O is:

___NH3 + 5O2 ↔ 4NO + 6H2O

• 4

• 3

• 2

• 5

The balanced chemical equation that represents the reaction of potassium and oxygen to produce potassium oxide is:

4K + O2 → ___K₂O

• 2

• 3

• 4

• 5