4/22/21 Water- A Unique Chemical Video Quiz

The polarity of water creates strong ______ bonds between water molecules.

• carbon

• hydrogen

• nitrogen

• phosphorus

The strong intermolecular forces in water result in a melting point of ______ degrees Celsius and a boiling point of ______ degrees Celsius.

• -20...200

• 0...100

• 10...150

• 20...300

What forms when two immiscible liquids, like oil and water, are mixed?

• aerosol

• ATP

• emulsion

• solution

Water is ______, which means it can act as an acid or a base.

• amphoteric

• ergonomic

• isothermic

• opaque

The chemical reactions that occur during ______ involve water.

• cellular respiration

• digestion

• photosynthesis

• All of the above.

Water exists in all phases on the Earth.

• True

• False

When water solidifies to become ice it

• expands and becomes more dense so it will sink in liquid water.

• contracts and becomes more dense so it will sink in liquid water.

• expands and becomes less dense so it will float on liquid water.

• contracts and becomes less dense so it will floats on liquid water.

Some physical properties of water are it is

(select all that apply)

• transparent.

• colorless.

• odorless.

• high surface tension

Water is classified as

• an ionic compound.

• a covalent compound.

• a metallic compound.

The correct formula for water is

• H₂O

• H₂ O₂

• HO

• H²O