Properties of Water

Water is made up of:

• hydrogen and helium

• oxygen and carbon

• oxygen and nitrogen

• hydrogen and oxygen

This type of intermolecular force is present between hydrogen atom of a water molecule and oxygen atom of another water molecule.

• covalent bond

• ionic bond

• hydrogen bond

• ion-dipole

Water ___________ when freezes.

• dissolves

• expands

• conducts

• contracts

At what temperature (in Celsius) when water freezes?

• 212

• 100

• 32

• 0

At what Celsius temperature when water boils?

• 100

• 75

• 12

• 0

Water strider can skate on top of water because of what property?

• specific heat

• adhesion

• surface tension

• capillary action

What word describes when a water molecule is attracted to other molecules?

• cohesion

• adhesion

• surface tension

• capillary action

Why is water considered a polar molecule?

• The oxygen end is slightly negative and the hydrogen end is slightly positive

• The hydrogen and oxygen are covalently bonded

• Because it is hydrophobic

• because of high boiling point

Why does water move from the roots to the leaves of plants?

• Water is pushed by solutes

• Water is pulled by gravity

• Water’s cohesion causes it to “pull” towards the leaves

• Capillary action pulls the water molecules up

What word describes when a water sticks to another substance?

• Cohesion

• Solution

• Adhesion

• Transpiration