LESSON 1

Question 1

When two liquids can mix and form a uniform solution (solute + solvent blend completely).

Answer 1

Miscible

Question 2

When two liquids do not mix and form separate layers.

Answer 2

Immiscible

Question 3

When two liquids are mixed in equal amounts, determining which is the solute and which is the solvent becomes a bit trickier. In this case, it depends on other factors:

Answer 3

Polarity and Solubility, and Boiling points (100 degree C)

Question 4

The components are evenly distributed throughout and has a uniform appearance

Answer 4

Homogeneous mixture

Question 5

The components are not evenly distributed throughout and it doesn’t have a uniform appearance

Answer 5

Heterogeneous mixture

Question 6

A particular kind of matter with uniform properties

Answer 6

Substance

Question 7

Is a material made up of two or more different substances which are physically combined

Answer 7

Mixtures

Question 8

Is a substance dissolved in another substance

Answer 8

Solute

Question 9

Is a substance that dissolves a solute, resulting in a solution

Answer 9

Solvent

Question 10

Is a special type of homogeneous mixture composed of two or more substances

Answer 10

Solutions

Question 11

Universal solvent

Answer 11

water

Question 12

A substance that dissolves the solute like water

Answer 12

Solvent

Question 13

A substance dissolved in a solvent like sugar

Answer 13

Solute

Question 14

Is a solution off any substance in which solvent is water

Answer 14

Aqueous solution

Question 15

Is an ability of the solute to be dissolved in a solvent

Answer 15

Solubility

Question 16

Are those that conduct electricity

Answer 16

electrolytes

Question 17

An aqueous solution of sodium chloride

Answer 17

Electrolytes

Question 18

Are solutions that do not conduct electricity

Answer 18

Nonelectrolytes

Question 19

An aqueous solutions of isopropyl alcohol or rubbing alcohol

Answer 19

Nonelectrolytes

Question 20

The _______ of a substance refers to the maximum concentration that can be dissolved in a saturated solution

Answer 20

solubility

Question 21

it contains the maximum amount of solute dissolved by a given amount of solvent

Answer 21

saturated solution

Question 22

if you add more solute to the solvent, it will no longer dissolve because the solution has reach its saturation point

Answer 22

saturated solution

Question 23

is the point beyond which the substance will no longer dissolve in the solution

Answer 23

saturation point

Question 24

the presence of an excess solid which can no longer dissolve is an evidence that a solution is ________

Answer 24

saturated, thus becoming supersaturated

Question 25

solution that is more concentrated than a saturated solution

Answer 25

supersaturated solution

Question 26

holds more solute than it normally could in its saturated form

Answer 26

supersaturated solution

Question 27

unstable

Answer 27

supersaturated solution

Question 28

factors affecting solubility

Answer 28

nature of solute and solvent, temperature, and pressure

Question 29

Solids in liquids: Higher temperatures usually increase solubility. Example: Sugar dissolves more readily in hot water. Gases in liquids: Solubility decreases as temperature increases. Example: Carbonated drinks lose fizz faster when warm because CO₂ escapes.

Answer 29

Temperature

Question 30

For gases in liquids: Higher pressure increases solubility. Example: Carbon dioxide is dissolved in soda under high pressure to keep it fizzy.

Answer 30

Pressure

Question 31

"Like dissolves like": Polar solutes dissolve in polar solvents, and nonpolar solutes dissolve in nonpolar solvents. Example: Salt (polar) dissolves in water (polar), but oil (nonpolar) does not.

Answer 31

Nature of the Solute and Solvent

Question 32

Effective encounters among solute and solvent particles will result in ________

Answer 32

solvation

Question 33

this is when the solute particles eventually drift into the solution

Answer 33

solvation

Question 34

energy absorption is sometimes necessary to break down the solute and solvent particles and overcome the respective intermolecular forces of attraction

Answer 34

endothermic

Question 35

energy is released during interaction between solute and solvent molecules

Answer 35

exothermic

Question 36

accounts for the overall change in the energy associated with the formation of solution

Answer 36

heat of solution

Question 37

mixture of oxygen and nitrogen gas

Answer 37

gas and gas, gaseous solution

Question 38

chloroform mixed with nitrogen gas

Answer 38

liquid and gas, gaseous solution

Question 39

gaseous solution camphor in nitrogen gas

Answer 39

solid and gas, gaseous solution

Question 40

oxygen dissolved in water

Answer 40

liquid solution, gas and liquid

Question 41

ethanol dissolved in water

Answer 41

liquid solution, liquid and liquid

Question 42

glucose dissolved in water

Answer 42

liquid solution, solid and liquid

Question 43

solution of hydrogen in palladium

Answer 43

solid solution, gas and solid

Question 44

amalgam of mercury with sodium

Answer 44

solid solution, liquid and solid