quiz 1

Question 1

State how a mixture of a solid and a liquid can be separated

Answer 1

Filtration

Question 2

State how the different components of ink can be separated

Answer 2

chromatography

Question 3

Define element

Answer 3

A substance that is made of only one type of atom only

Question 4

State how many different types of elements there are

Answer 4

Around 100

Question 5

Define mixture

Answer 5

Two or more elements or compounds together,but not chemically bonded

Question 6

State how a mixture of 2 liquids with very different boiling points can be separated

Answer 6

distillation

Question 7

Name the type of process in which mixtures are separated into their components

Answer 7

physical process

Question 8

State how compounds can be separated into elements

Answer 8

by chemical reactions

Question 9

State how a mixture of liquids with similar boiling points can be separated

Answer 9

fractional distillation

Question 10

Give the technical definition of an atom

Answer 10

The smallest part of an element that can exist

Question 11

Define compound

Answer 11

A substance made of 2 or more elements chemically combined

Question 12

State how compounds are formed

Answer 12

by chemical reactions

Question 13

State how a solution can be separated to obtain a solid

Answer 13

crystallisation