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Flashcards in Quiz Deck (25):
1

Heterogenous mixture

A mixture that doesn't have a uniform complexion
Ex: chocolate chip cookie

2

Homogenous mixture

A mixture with a uniform composition, also known as a solution.
Ex: soup, water,,air

3

Distillation

Process of separating a mixture by using different boiling points

4

Centrifuge

Spins the mixture so the solution separated due to different densities

5

Decant

Pouring the liquid off the top

6

Filtration

Using a porous paper to stop larger particles from passing wth the smaller ones

7

Types of heterogenous mixtures

Suspension and colloid

8

Suspension

A mix of large particles that are temporarily suspended and do not 'blend'. They separate over time, like vinegar and oil

9

Colloid

A heterogenous mix that is composed of two different types of matter. Appears homogenous to the naked eye, and is opaque. Example: foam

10

Major differences between colloids and suspensions:

Suspensions don't have a uniform appearance, but colloids do
Suspensions have big particles, colloids have small particles
Suspensions separate (called unstable), but colloids stay mixed (stable)

11

Solution

A homogenous mixture

12

Parts of a solution

Solute: the substance being dissolved (ex: salt in salt water)
Solvent: the substance doing the dissolving (ex: water in salt water)

13

Colloids and solutions both have uniform appearances because they are both homogenous. How does one tell them apart?

By looking at the transparency: if the mixture is clear, then it is a solution. If it is opaque, it is a colloid

14

Soluability

The amount of solute that that dissolves in a given amount of solvent

15

Three factors affecting solubility are...

1. Temperature: increase of temperature means an increase in solubility
2. Agitation: increase in agitation means increase in solubility
3. Surface area: the decrease in surface area of the particles means an increase in solubility

16

List the three types of solution:

1. Saturated solution t
2. Unsaturated solution
3. Supersaturated solution

17

Describe Saturated solutions

They contain the maximum amount of solute per given solvent at a given temperature

18

Describe Unsaturated solution

They contain less solute than the given amount of solvent can dissolve

19

Describe Supersaturated solutions

They contain more solute than the maximum amount the given solvent can dissolve

20

How can he make a supersaturated solution?

By heating up a saturated solution, adding more solute and then cooling to room temperature

21

Define soluble

When a solid/gas solute does dissolve

22

Define insoluble

When a solid/gas doesn't dissolve

23

Define miscible

Liquids that dissolve in one another

24

Define Immiscible

Liquids that do not dissolve in one another (ex vinegar and oil)

25

Mixture

2 or more substances that are physically combined, not chemically bonded, that have retained their initial properties