Unit 5 Review

Front

What is the Lewis structure for NH3 (ammonia)?

Back

The Lewis structure for NH3 shows nitrogen (N) in the center with three hydrogen (H) atoms bonded to it, and a lone pair of electrons on the nitrogen.

Front

Which of the following is NOT an ionic compound: NaCl, MgO, Br2, or CaF2?

Back

Br2 is not an ionic compound; it is a diatomic molecule.

Front

What is the IUPAC name for CO2?

Back

The IUPAC name for CO2 is carbon dioxide.

Front

What is the correct formula for Tetranitrogen trichloride?

Back

The correct formula for Tetranitrogen trichloride is N4Cl3.

Front

What is the formula for phosphorus trifluoride?

Back

The formula for phosphorus trifluoride is PF3.

Front

What is a Lewis structure?

Back

A Lewis structure is a diagram that shows the bonding between atoms of a molecule and the lone pairs of electrons that may exist.

Front

What are ionic compounds?

Back

Ionic compounds are formed when atoms transfer electrons, resulting in the formation of positively and negatively charged ions.

Front

What is the significance of the IUPAC nomenclature system?

Back

The IUPAC nomenclature system provides a standardized way to name chemical compounds, ensuring that each compound has a unique and universally accepted name.

Front

How do you determine the correct formula for a compound based on its name?

Back

To determine the correct formula, identify the elements involved, their oxidation states, and use the appropriate subscripts to balance the charges.

Front

What is the difference between molecular and ionic compounds?

Back

Molecular compounds consist of molecules formed by covalent bonds, while ionic compounds consist of ions held together by ionic bonds.