Mixtures

Question 1

What are mixtures

Answer 1

They are combinations of two or more elements and/ or compounds

Question 2

How are the components put together

Answer 2

They are not chemically bonded together

Question 3

How can the components be separated

Answer 3

Physical separation methods

Question 4

What are all the separation methods

Answer 4

Hand sorting
Filtration
Distillation
Using a magnet
Evaporation
Sieving
Chromatography
Separating Funnel

Question 4

Define Hand sorting

Answer 4

Particles with different appearances that can be handled

Question 5

Define Filtration

Answer 5

One substance is a solid the other is a liquid or solution

Question 6

Define Distillation

Answer 6

Substances with large difference in boiling points either two liquids or a solution or solutions or a solid dissolved in a liquid

Question 7

Define using a magnet

Answer 7

To separate magnetic substances with a magnet from a non-magnetic substance

Question 8

Define evaporation

Answer 8

When you separate liquids, with a much lower boiling point, from a solid that is dissolved in it

Question 9

Define sieving

Answer 9

Separating smaller particles from a liquid or solid

Question 9

Define chromatography

Answer 9

Particles of substances have different absorptions to a stationary phase

Question 10

Define a separation funnel

Answer 10

Unmixable liquids with different densities

Question 10

What is the boiling point of water and ethanol

Answer 10

100C and 78C

Question 11

How do you test for oxygen

Answer 11

A glowing splint will reignite in the presence of oxygen

Question 12

How do you test for carbon dioxide

Answer 12

When it is blown into clear lime water the lime water will become milky

Question 13

How do you test for hydrogen

Answer 13

When a burning splint is put in the presence of hydrogen it will make a squeaky pop sound