5.4

Question 1

cohesion

Answer 1

bonding between h20 (water molecules)

Question 2

adhesion

Answer 2

bonding between h20 and other substances

Question 3

solvent

Answer 3

something that dissolves a solute to create a solution

Question 4

specific heat

Answer 4

the amount of energy it takes to heat up 1 gram of a substance by 1 degree Celsius

Question 5

heat of vaporization

Answer 5

energy it takes for 1 g of water to evaporate

Question 6

concentration

Answer 6

the amount of a substance (water) in a solution.

Question 7

pH

Answer 7

is a measure of the acidity or basicity of a solution. (potential of hydrogen)

Question 8

pOH

Answer 8

a measure of the hydroxide ion (OH−) concentration in a solution. shows acidic vs basic

Question 9

hydroxide ion,

Answer 9

OH-, shows more basic, higher number

Question 10

hydronium ion

Answer 10

H3O, more acidic, closer to zero

Question 11

acid

Answer 11

substances that donate hydrogen ions (H+) to solutions.

Question 12

base

Answer 12

substances that reduce the hydrogen ion (H+) concentration in a solution.

Question 13

why is each water property is important to living things

Question 14

5 properties of water

Answer 14

1.Cohesion
2.adhesion
3.high surface tension
4. high specific heat
5. ice floats