Chapter 3

Question 1

Delta Symbol Meaning

Answer 1

partial

Question 2

Human Body Temp.

Answer 2

37 degrees C, and 98.6 degrees F

Question 3

Cohesion

Answer 3

Water molecule stick to other water molecule

Question 4

Adhesion

Answer 4

Water molecule temporary sticking to tube/container it’s in.

Question 5

Specific heat

Answer 5

Amount of heat a substance requires to increase temp. of 1 gram by 1 degree C

Question 6

Calorie

Answer 6

Specific heat of water.

Question 7

Mol

Answer 7

A measurement. 6.022 * 10^23 atoms. Avogadro’s number.

Question 8

Molarity (M)

Answer 8

Mols over Litres

Question 9

pH scale

Answer 9

Measurement of concentration of H+ ions. A log based scale. Lower numbers = higher acidity, higher numbers = higher basic.

0-14

Question 10

Blood (Mammal) pH

Answer 10

7.35-7.45.

Question 11

pH 4

Answer 11

10^-4 M of H+
10^-10 M of OH-

Question 12

Buffers

Answer 12

Accept or send out H+ ions.

Question 13

Surface tension

Answer 13

Cohesion due to h-bonding adds a measure of how difficult it is to stretch or break the surface of a liquid

Question 14

Kinetic Energy

Answer 14

Anything that moves

Question 15

Thermal energy

Answer 15

Total kinetic energy

Question 16

Heat

Answer 16

Thermal energy transferring from one body to another

Question 17

Temperature

Answer 17

Avg. kinetic energy

Question 18

Heat of Vaporization

Answer 18

Quantity of heat absorbed by a body of liquid for 1g of it to convert to gas.

Question 19

Evaporation Cooling

Answer 19

As liquid evaporates, cool water is left behind.

Question 20

Ice insulates

Answer 20

Lighter than water, otherwise oceans would freeze through. Water is most dense at 4 degrees C.

Question 21

Solutions

Answer 21

Completely homogenous of 2 or more liquids

Question 22

Solvent

Answer 22

Dissolving Agent, commonly water.

Question 23

Solute

Answer 23

Thing being dissolved.

Question 24

Aqueous Solution

Answer 24

A solution in which a solute is dissolved in water

Question 25

Hydration Shell

Answer 25

Sphere of water molecules around each dissolved ion

Question 26

Hydrophilic substance

Answer 26

Water loving

Question 27

Hydrophobic

Answer 27

Dislikes water

Question 28

Colloid

Answer 28

A group of microparticles that’re insoluble. Suspended in a substance of water.