Which of the following is an example of hydrogen bonding? A) Water (H2O) B) Methane (CH4) C) Carbon dioxide (CO2) D) Oxygen (O2).

• Water (H2O)

• Methane (CH4)

• Carbon dioxide (CO2)

• Oxygen (O2)

Vaporization occurs when the kinetic energy of molecules overcomes the ________ forces holding them together.

• gravitational

• intermolecular

• magnetic

• nuclear

Why does water have a higher boiling point compared to similar molecules without hydrogen bonding?

• Because of its color

• Due to hydrogen bonding

• Because it is a liquid

• Due to its density.

Which phenomenon is a result of surface tension?

• Water boiling

• Water beading on surfaces

• Water freezing

• Water evaporating

Insects walking on water is an example of ________.

• evaporation

• surface tension

• condensation

• precipitation

Hydrogen bonding in water gives it unique properties, including a high ________ point.

• freezing

• melting

• boiling

• sublimation

What creates a molecular 'skin' on the surface of water?

• Hydrogen bonding

• Surface tension

• Evaporation

• Condensation

Hydrogen bonding is crucial in determining many properties of substances, including ________.

• color

• vaporization

• taste

• smell

Substances with strong hydrogen bonding have ________ boiling points.

• lower

• higher

• the same

• variable

What effect does increasing temperature have on hydrogen bonds?

• Strengthens them

• Weakens them

• No effect

• Destroys them