Properties of Water

When you put water drops on a penny, the drops pile up in a dome because of which property of water?

• Adhesion 
• Polarity
• Cohesion 
• High specific heat

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.

What two elements make up water?

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

What word describes when water is attracted to other substances?

• cohesion
• adhesion
• capillary action
• surface tension

Attractions between water molecules are called

• Covalent bonds
• Ionic bonds
• Polar bonds
• Hydrogen bonds

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 is the compound for water?

• H20
• O2
• C02
• N2

What produces surface tension?

• Water.
• Hydrogen bonds.
• Adhesion.
• Cohesion.

What is a polar molecule ?

• Have slightly charged regions
• Have no charged regions
• have negatively charged regions
• Have positively charged regions

A water strider can skate along the top of a pond because:

• covalent bonds result in water cohesion
• hydrogen bonds result in water cohesion (surface tension)
• of water's high specific heat
• low surface tension of water