Properties of Water 3

​What Element am I?

Atomic Number 12: What element am I?

• ​​Atomic Mass is 24, how many Neutrons do I have?

• ​​My Net Charge is +2, How many electrons do I have?

Multiple Choice

Why does ice float on water?



• When it freezes it becomes less dense

• When it freezes it becomes more dense

• When it freezes its density stays the same

Multiple Choice

Ice floats on water because

• adhesion

• cohesion

• water expands when it freezes

• water shrinks when it freezes

Multiple Choice

When salt is dissolved in water, water is the

• solvent

• solute

• solution

• reactant

Multiple Choice

Capillary action is....

• adhesion

• cohesion

• change in matter (heat of fusion)

• both adhesion and cohesion

Multiple Choice

Large bodies of water do not quickly fluctuate in temperature. Why?

• Water is a solvent.
• Water has a high heat capacity.
• Water acts as a buffer.
• Water is non-polar.

Multiple Choice

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

• Water is pushed by solutes
• Capillary action pulls the water molecules like a chain
• Water is pulled by gravity
• Water’s cohesion causes it to “pull” towards the leaves

Multiple Choice

What property of water helps to moderate earth's temperature?

• adhesion
• chohesion
• Specific heat capacity
• Latent heat of vaporization

Multiple Choice

Why does ice float?

• As water freezes, it expands and its density decreases.
• As water freezes, it takes up more hydrogen from the atmosphere, causing it to have a greater buoyancy.
• As water freezes, air becomes trapped between the hydrogen bonds of water molecules.
• As water freezes, it takes up more oxygen from the atmosphere, causing it to have a greater buoyancy.

Multiple Choice

Water is polar because...

• The unequal sharing of electrons gives the water molecule a slight negative charge near its oxygen atom and a slight positive charge near its hydrogen atoms.
• The molecule has two poles, at which the it is colder than other regions of the molecule.
• The unequal sharing of electrons gives the water molecule a slight negative charge near its hydrogen atoms and a slight positive charge near its oxygen atom.
• The water molecule is neutral.

Multiple Choice

The bond that holds the Oxygen and Hydrogen atoms together in a water molecule is a ________ bond.

• ionic

• Hydrogen

• Covalent

• Weak

Multiple Select

What are the unique properties of water? - choose all that apply.

• cohesion

• adhesion

• specific heat

• universal solvent

• unique temperature

Multiple Choice

________________________ is the energy needed to heat a substance by a particular amount.

• specific heat

• specific temperature

• Universal solvent

• adhesion