Chapter 8

Question 1

Suspension

Answer 1

• made of large particles: can be seen w/ human eyes

- particles settle out and can be filtered

Question 2

Colloid

Answer 2

can’t be filtered but can scatter light (Tyndal Effect) - particles are smaller than a suspension

Question 3

Emulsion

Answer 3

colloid where liquids that don’t usually mix are spread throughout each other

Question 4

Solution

Answer 4

homogeneous mixture- particles are extremely small and doesn’t settle out

Question 5

Polar (molecules)

Answer 5

have UNeven distribution of charge

Question 6

Nonpolar (molecules)

Answer 6

have an EVEN distribution of charge

Question 7

Name 3 ways to speed up dissolving a solute

Answer 7

1. Larger surface area of solute = dissolved faster
2. Stirring/Shaking solids dissolve faster in solvent
3. Higher temp of solvent = dissolved faster

Question 8

Solubility

Answer 8

ability of one substance to dissolve in another at a given temp and pressure

Question 9

Concentration

Answer 9

amount of a particular substance in a given quantity of a mixture, solution, or ore

Question 10

Name 3 types of saturated solutions

Answer 10

1. Unsaturated
2. Saturated
3. Supersaturated

Question 11

Saturated solution

Answer 11

maximum amount of solute that will dissolve in a solution

Question 12

Unsaturated solution

Answer 12

contains less than maximum amount of solute that will dissolve in the solvent

Question 13

Supersaturated solution

Answer 13

solution has more solute than it normally would to reach equilibrium at the higher temp

Question 14

How does temp affect saturation?

Answer 14

higher temp requires more solute until the solution becomes saturated at the given temp

Question 15

How does temp and pressure affect solubility of gases?

Answer 15

Temp: gases are less soluble in warmer water
Pressure: increase in pressure increases gases’ solubility