Solvent Water

Which is NOT a unique property of water?

• Frozen water floats on liquid water.
• Water covers most of the Earth’s surface and retains a large amount of heat.
• Water molecules stick to each other through hydrogen bonds.
• Water cools very rapidly.

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.

_{What are water's unique properties?}

• It is what humans drink.
• It is everywhere.
• It is clear.
• It can be all 3 states of matter.

What is a water molecule composed of?

• 1 Hydrogen atom and 2 Oxygen atoms
• 2 Hydrogen atoms and 1 Oxygen atom
• 3 Oxygen atoms
• 2 Helium atoms and 1 Oxygen atom

Water can dissolve many things so it is called the .....

• wonderful water
• cohesion
• liquid
• universal solvent

What is the chemical formula for water?

• 2HO
• H2O
• HO2
• H2O2

Which letter represents hydrogen?

• A
• B
• C
• D

What two elements make up water?

• Helium and oxygen
• Hydrogen and oxygen
• helium and carbon
• oxygen and carbon

The thing that does the dissolving

• Solute
• Solvent
• Colloid
• Solution

In the water molecule, hydrogen atoms have a ________ charge. 

• positive
• negative
• neutral