1st semester final review #5: Ionic vs Molecular Compounds

Front

What is the difference between ionic and molecular compounds?

Back

Ionic compounds are formed by the transfer of electrons from one atom to another, resulting in the formation of ions. Molecular compounds are formed by the sharing of electrons between atoms.

Front

What is a covalent bond?

Back

A covalent bond is a chemical bond that involves the sharing of electron pairs between atoms.

Front

What is the Lewis structure?

Back

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

Front

What is the chemical formula for tetraphosphorus heptaoxide?

Back

P₄O₇

Front

What is the chemical formula for silicon dioxide?

Back

SiO₂

Front

What do covalent bonds share?

Back

Covalent bonds share electrons.

Front

How many electrons should each nonmetal atom (except hydrogen) be surrounded by in a Lewis structure?

Back

Each nonmetal atom should be surrounded by 8 electrons.

Front

What are the characteristics of ionic compounds?

Back

Ionic compounds typically have high melting and boiling points, are soluble in water, and conduct electricity when dissolved.

Front

What are the characteristics of molecular compounds?

Back

Molecular compounds typically have lower melting and boiling points, may or may not be soluble in water, and do not conduct electricity.

Front

What is an example of an ionic compound?

Back

Sodium chloride (NaCl) is an example of an ionic compound.