12.1 hannah's notes

Question 1

_____: what is dissolved

Answer 1

solute

Question 2

______: what does the dissolving
ex: salt water is a solution

Answer 2

solvent

Question 3

_______: solute will dissolve : salt/sugar are … in water

Answer 3

miscible

Question 4

____: solute will not dissolve: oil & water are …

Answer 4

immiscible

Question 5

oil (_______) + water (______) = immiscible

Answer 5

non-polar oil

polar water

Question 6

salt (or sugar) and water are both polar so it is ______

Answer 6

miscible

Question 7

Grease gets ripped up when you scrub the pan with soap.

______: breaking large droplets of grease into small droplets

Answer 7

emulsification

Question 8

how do you increase the rate of dissolving?

Answer 8

1. ) stir solute and solvent
2. ) increase surface area of solute (crush / grind into powder).
3. )heat up solvent (heat = motion) so molecules move faster - more contact.

Question 9

Non-polar (___) + polar (____) = immiscible

Answer 9

Oil

Water

Question 10

What does emulsification mean?

Answer 10

Emulsification is breaking large droplets of grease into small droplets

Question 11

How do you increase the rate of dissolving?

Answer 11

1. ) stir solute and solvent
2. ) increase surface area of solute (crush / grind into powder)
3. )heat up solvent (heat = motion) so molecules move faster - more contact.

Question 12

________: 15 gallons of H2O in air (humidity)

_____ is polar

Answer 12

Condensation

water

Question 13

What do molecules do in a warm room?

Answer 13

molecules move too quickly to stick in a warm room.

Question 14

What do molecules do on cold windows?

Answer 14

Molecules slow down and stick

Question 15

Will molecules stick in a warm room?

Answer 15

NO! Molecules move too quickly to stick in a warm room.

Question 16

What do molecules do on a cold window?

Answer 16

The molecules will SLOW DOWN and STICK

- causes CONDENSATION

Question 17

COLD WINDOWS–> The molecules will SLOW DOWN and STICK. This causes ________

Answer 17

condensation

Question 18

What is the maximum amount of humidity?

Answer 18

4%

Question 19

_________:more solute can be dissolved / added

Answer 19

unsaturated ; 1 tsp sugar

Question 20

____: no more solute will dissolve

Answer 20

saturated; 4 tsp sugar

Question 21

Why won’t crystal dissolve?

Answer 21

saturated

Question 22

____________

1. ) saturated solution at warm temperature
2. ) seal container
3. ) cool down

Answer 22

Super Saturated Solution

Question 23

what is SUPER SATURATED SOLUTION?

Answer 23

1. ) saturated solution at warm temperature
2. ) seal container
3. ) cool down