Covalent Molecules Review

Front

What is electronegativity?

Back

Electronegativity is a measure of an atom's ability to attract the electrons in the bond between the atom and another atom.

Front

What is the name of the compound N₂O₅?

Back

Dinitrogen pentoxide.

Front

Which molecule contains a nonpolar covalent bond?

Back

H₂ (Hydrogen gas) contains a nonpolar covalent bond.

Front

What type of forces exist between carbon dioxide molecules in solid carbon dioxide?

Back

Weak intermolecular forces.

Front

What causes the unusually high boiling point of water (H₂O)?

Back

The presence of hydrogen bonds.

Front

Define a covalent bond.

Back

A covalent bond is a chemical bond formed by the sharing of electron pairs between atoms.

Front

What is a polar covalent bond?

Back

A polar covalent bond is a type of bond where electrons are not shared equally between two atoms, resulting in a molecule with a slight electrical dipole moment.

Front

What is the difference between ionic and covalent bonds?

Back

Ionic bonds involve the transfer of electrons from one atom to another, while covalent bonds involve the sharing of electrons.

Front

What is a molecule?

Back

A molecule is a group of two or more atoms bonded together by covalent bonds.

Front

What is the significance of hydrogen bonds in water?

Back

Hydrogen bonds give water its unique properties, such as high surface tension and high boiling point.