Unit 1 AP Biology Storyline American Southwest

Front

Describe polar covalent bonds in water.

Back

Polar covalent bonds occur within a water molecule due to the sharing of electrons of the oxygen atom and the hydrogen atoms.

Front

Water Property: Surface Tension

Back

Strong hydrogen bonds hold water molecules together.

Front

Water Property: Cohesion

Back

Cohesion involves bonding between like molecules. For water , the O of one water molecule bond to the H of another water molecule.

Front

Water Property: Adhesion

Back

The clinging of one substance to another due to attraction of H2O to another polar molecule

Front

Diagram showing energy levels

Back

Diagram explains how water moderates temperature through energy absorption and release.

Front

Energy

Back

The capacity to do work or produce heat.

Front

Water Property: High Heat Capacity

Back

Takes a lot of E to heat up water and break apart hydrogen bonds. (remove E to cool down)

Front

Water Property Evaporative Cooling

Back

Evaporation is the transformation of a substance from a liquid to a gas.

High heat of vaporization- need lots of E

Front

Water Property: Universal Solvent

Back

The polar molecular structure of water allows it to dissolve more types of substances than any other liquid

Front

Water Density

Back

Can be affected by temperature or solutes present in the water.