Properties of Water

Ice floats on water because

• adhesion

• cohesion

• water expands when it freezes

• water shrinks when it freezes

When salt is dissolved in water, water is the

• solvent

• solute

• solution

• reactant

Capillary action is....

• adhesion

• cohesion

• change in matter (heat of fusion)

• both adhesion and cohesion

Water changes from a liquid to a gas

• Evaporation

• Condensation

• Precipitation

• Run off

Water changes from a gas to a liquid

• Evaporation

• Condensation

• Precipitation

• Run off

-A water molecule is composed of 2 H atoms and 1 O atom. What is the chemical equation for water?

• HO

• H2O

• H3O

• H2O2

Water is a polar molecule, which means it has a positive and a negative side. Hydrogen bonds form when:

• _{The positive end of one water molecule bonds to the positive end of another water molecule.}

• _{The negative end of one water molecule bonds to the negative end of another water molecule.}

• _{The positive end of one water molecule bonds to the negative end of another water molecule.}

The ability of water molecules to stick to each other, creating surface tension is called:

• Cohesion

• Adhesion

• Insulation

• Ph

The fact that water can stick to other substances is called:

• Ph

• Adhesion

• Cohesion

• Insulation

Heat Capacity is a measure of the heat required to raise the temperature of 1g of a substance by 1°C.

So...

True or False:

Water has a very high heat capacity, which means it resists changing temperature when heat is added or removed.

• True

• False