Properties Of Water-#5ac6 Doc

Properties of Water H2O is Charge is neutral, like all molecules. I.

Water Molecules A.

Polarity 1.

Oxygen atom stronger attraction for e' a.

8 protons in the nucleus

b.

Greater probability of shared electrons near the O2 atom

2.

Hydrogen atom has just one proton, thus weaker charge

3.

Has a bent shape a.

O2 on one end H on the other end

b.

O2 end has slightly negative charge

H has slightly positive charge 4.

B.

Polar Molecule a.

Uneven distribution of charges

b.

Molecule like a pole magnet (1)

neg near O2

(2)

pos near H

Hydrogen Bonds 1.

Polar molecules attract e/other Like magnets

2.

Weaker than ion bonds a.

Weaker thus shown in parenthesis (1) (2)

3.

4.

(-) (+) ion bonds do not use parenthesis

Cohesion a.

water can have 4 hydrogen bonds

b.

this gives H2O its unique properties.

Adhesion a.

Attraction of molecules of different substances

b. Capillary Action (1) Attraction between water and the glass of a test tube (2)

is strong than the attraction between water molecules

(3) Why water in test tube is curved in the center (4) Cap action allows water to travel up the roots all of the

way up to the leaves. II.

Solutions and Suspensions

III.

Acids, Bases, and pH

IV.

Carbon Compounds

V.

Chemical Reactions and Enzymes.