States Of Matter

Question 1

Dissolving

Answer 1

The mixing of a solid with a liquid to make a solution

Question 2

Mixture

Answer 2

Two or more substances that are next to each other but are not chemically bonded

Question 3

Saturated

Answer 3

A solution containing the maximum quantity of solute that it can hold 

Question 4

Soluble

Answer 4

A substance that can be dissolved in a solvent

Question 5

Solubility

Answer 5

A measure of how much solvent can dissolve the solution at a given temperature

Question 6

Solute

Answer 6

Solid that dissolves in a solvent to make a solution 

Question 7

Solvent

Answer 7

The liquid in which a solid dissolves to make a solution

Question 8

How is a solution formed?

Answer 8

When solute dissolves in solvent

Question 9

Sublimation

Answer 9

When a solid turns straight to a gas
(No liquid stage)

Question 10

What is depostion?

Answer 10

When a gas turns staight into a solid
(No liquid stage)

Question 11

Pure substance

Answer 11

A substance that has one definite melting point
(Fixed melting point)

Question 12

Impure substance

Answer 12

Substance that does not have a definite melting point , it will melt over a range of temperatures

Question 13

Pure

Answer 13

A substance made of one element or compound

Question 14

Impure

Answer 14

A substance of two or more other substances mixed in


Question 15

How does solid get to liquid

Answer 15

Melt

Question 16

How does liquid get to gas

Answer 16

Boiling

Question 17

How does gas get to liquid

Answer 17

Condensing

Question 18

How does liquid get to solid?

Answer 18

Freezing

Question 19

Heating curve

Answer 19

How the temperature changes, as a substance is heated up

Question 20

Separtating insoluble solids from a liquid

Answer 20

Filteration

Question 21

Separating soluble solid from liquid

Answer 21

Evaporation

Question 22

3 processes in Distillation

Answer 22

• evaporating
• condensing
• collecting

Question 23

What is chromatography used for

Answer 23

To separate substances, distinguish pure/impure substances

Question 24

Why does the mixture get separated?

Answer 24

The more soluble substances in the mixture spread along the papaer faster. The father of the dye travels up the chromatogram the more soluble it is 

Question 25

How do you identify substances

Answer 25

By calculating the Rf value

Question 26

What is the RF value

Answer 26

Ratio compared to how far the component has travelled / how far the solvent have travelled

Question 27

What does the RF value always have

Answer 27

No units Less than one

Question 28

What if there is one colour

Answer 28

Its a pure substance

Question 29

Solvent front

Answer 29

The furthest point in which the water has risen up the chromatogram

Question 30

How do you calculate the Rf value

Answer 30

Can you measure the distance from the baseline to the solvent front – seeing how soluble the dyes are