Chapter 3

Question 1

4 properties of hydrogen bonds

Answer 1

cohesion behavior
Ability to moderate temperature
Expansion of freezing
Versatility as a solvent

Question 2

Cohesion

Answer 2

The linking of identical molecules together via hydrogen bands

Question 3

Adhesion

Answer 3

Water is in close contact with other polar molecules a hydrogen band forms or cling between 2 different substances

Question 4

Moderation by temperature

Answer 4

When there is a temperature gradient thermal energy or heat, passes from the warmer to the cooler object until the 2 are equal

Question 5

Specific heat

Answer 5

Amount of heat something that must be absorbed or lost for 1g of that substance to change its temperature by 1°c

Question 6

Surface tension

Answer 6

A force that cause s he molecules at the waters surface liquid → gas - to be pushed together more compact and organized

Question 7

Calorie

Answer 7

Amount of heat required to raise the temperature of 1g of water by 1°c

Question 8

Why does ice float?

Answer 8

Hydrogen bonds in ice are ordered d making ice less dense

Question 9

Solution

Answer 9

Liquid that is a homogenized mix of substances

Question 10

Solve

Answer 10

The dissolving solution

Question 11

Aqueous solution

Answer 11

Water is the solvent

Question 12

Solvent of life

Answer 12

Versatile solvent ave to its polarity

Question 13

Hydrophilic

Answer 13

Likes water

Question 14

Hydrophobic

Answer 14

Hates water

Question 15

Hydrogen cation

Answer 15

Hydrogen atom can ship from one H2O molecule to the other

Leave its electron behind B transfers just protons -

Question 16

Hydroxide ion

Answer 16

Molecule that lost the hydrogen ion but retained electron