Elements Compounds and Mixtures

Question 1

Element

Answer 1

A substance is a substance that cannot be broken up into simpler substances by chemical means

Question 2

Who is the father of chemistry

Answer 2

Boyle 1665

Question 3

What is a compound?

Answer 3

A compound is a substance that is made up of two or more different elements combine together chemically

Question 4

Give give an example of a compound

Answer 4

MgO H2O FeS

Question 5

How to make a compound

Answer 5

You place the two or more elements together and apply heat so that the chemically combine

Question 6

Iron and sulphur experiment

Answer 6

This experiment proves the difference between mixtures and compounds

It’s when you apply heat to iron and sulphur it becomes iron sulphide

Question 7

Mixtures

Answer 7

A mixture consists of two or more different substances mingled with each other but not chemically combined

Question 8

Mixtures examples

Answer 8

Air sea water, crude oil earth and petrol

Question 9

Differences between a mixture and a compound

Answer 9

A mixture contains two or more substances

A compound is a single substance

A mixture is usually easy to separate
a compound is very difficult to separate