Unit 6- Mixtures and Solutions

Question 1

Distillation

Answer 1

Separation by using the substance boiling points

Question 2

Centrifuge

Answer 2

Rapid spinning that separates the substances based on density

Question 3

Decant

Answer 3

When you pour a liquid off a solid

Question 4

Filtration

Answer 4

Separation of solids and liquids by using a porous barrier

Question 5

Suspension

Answer 5

A diversion of large particles that are temporarily suspended in the liquid before naturally settling

Question 6

Example of suspension

Answer 6

Orange and pulp

Question 7

Colloid

Answer 7

Consists of 2 phases of matter and are only heterogeneous on a microscopic level

Question 8

Examples of of colloids

Answer 8

Spray paint or milk

Question 9

Solute vs. solvent

Answer 9

Solute is thing being dissolved while solvent is doing the dissolving

Question 10

Miscible

Answer 10

Two liquids that dissolve in one another Ex: water and ethanol

Question 11

Immiscible

Answer 11

Two liquids that can not dissolve in one another Ex: oil and water

Question 12

Factors affecting solubility of gas:

Answer 12

Goes down with agitation
Higher pressure=increased solubility
Lower temp=increased solubility

Question 13

Solubility rule

Answer 13

Polar dissolves polar and the same goes for no polar

Polar covalent: substances dissolve in subs in partial charges
Ionic: dissolves in full charges

Question 14

Solvation

Answer 14

The surrounding of solute particles by solvent particles

Question 15

Example of solvation

Answer 15

Salt in water

• salt breaks apart in water
• water surrounds particles
• reduces attraction in ions
• breaks apart and moves into solution

Question 16

Universal Solvent

Answer 16

Water