2.5

Question 1

Cohesion

Answer 1

sticking together particles of the same substance

Question 2

adhesion

Answer 2

attaching to a surface

Question 3

solvent

Answer 3

dissolves solute

Question 4

specific heat

Answer 4

the amount of heat needed to raise the temp one degree of a one gram item

Question 5

heat of vaporization

Answer 5

amount of heat needed to turn 1g into vapor

Question 6

concentration

Answer 6

number of particles in a given solution

Question 7

pH

Answer 7

how acidic or basic something is

Question 8

pOH

Answer 8

• log x 10 to the power of something

Question 9

hydroxide ion

Answer 9

H3O+

Question 10

hydronium ion

Answer 10

OH-

Question 11

acid

Answer 11

anything lower than 7

Question 12

base

Answer 12

anything higher than 7

Question 13

5 property’s of water

Answer 13

cohesion solvent specific heat heat vaporization polar

Question 14

Examples of why each property is important to living things

Answer 14

allows water to get where it needs to get to for nutrients

Question 15

Explain how water’s polarity or ability to make hydrogen bonds gives it each property

Answer 15

water molecules attract forming hydrogen bonds

Question 16

Calculate pH, [H3O+], [OH-], pOH when given one of the four variables

Answer 16

ph=1-7,7-14
H3O+ and OH- and acidic and basic pOH is -log 10x something

Question 17

Decide whether a solution is an acid, base, or neutral when given either pH, [H3O+], [OH-], or pOH

Answer 17

H3O+ is acid OH- is basic pOH is basic pH is acidic

Question 18

Compare the concentrations of [H3O+] and [OH-] of solutions with two different pHs.

Answer 18

in water they are more equal in acidic it would be more acidic and in basic it would be more basic