Elements, Compounds and Mixtures

Question 1

What is an element:

Answer 1

A substance that contains one type of atom

Question 2

What is a molecule:

Answer 2

More than one atom chemically bonded

Question 3

What is a compound:

Answer 3

Two or more elements chemically bonded and they are always neutral

Question 4

What is a mixture:

Answer 4

Two or more elements and/or compounds that are not chemically bonded

Question 5

What are the four ways of separating mixtures:

Answer 5

Chromatography, distillation, filtration, evaporation

Question 6

What does chromatography do:

Answer 6

Shows what colours are in a liquid on paper

Question 7

What does distillation do:

Answer 7

Separates liquids so you have the separate liquids at the end

Question 8

What does filtration do:

Answer 8

Separates solids from liquids

Question 9

What does evaporation do:

Answer 9

Separates solids and solids that have dissolved in liquids

Question 10

How do you separate compounds:

Answer 10

With a chemical reaction

Question 11

What elements form positive ions:

Answer 11

Metals