1. Anna Wilson Sarah Sellars Megan Wright Holden Videon
WATER
Anna Wilson
Sarah Sellars
Megan Wright
Holden Videon

2. Structure of Water
Consists of two atoms of hydrogen and one atom of oxygen
They are united by polar covalent bonds
Bent structure with an angle of about 105 degrees

3. Physical Properties of Water
Water is transparent when it is a liquid
Odorless tasteless and almost colorless
Any differences are caused by impurities
It expands when it freezes because the molecules form an open rigid structure
The lower density explains why ice floats in water
Boils at 100 degrees celsius
Water freezes at 0o C and ice melts at the same temperature

4. Energy and Water
When water changes state, you can calculate the amount of energy absorbed or released when a quantity of water changes state.

5. Section Review What kind of compound is water?
List at least 3 properties of water.
Which contains more molecules of water: 5.00cm3 of ice at 0o C or 5.00cm3 of liquid water at 0o C?
Describe the structure of a water molecule.

6. Section Review answers
Polar covalent
transparent , odorless, tasteless, almost colorless
Liquid water
Bent structure