Compounds-Paper 1

Question 1

What is a compound

Answer 1

Substances formed from two or more elements, the atoms of each are in fixed proportions and they’re help together by chemical bonds

Question 2

What does making bonds involve?

Answer 2

Giving away, taking or sharing electrons.

Question 3

What is needed to separate the original elements of a compound again?

Answer 3

A chemical reaction

Question 4

What does a compound from metal and non-metal consist of?

Answer 4

Ions

Question 5

Metal atoms lose…. to form …..

Answer 5

Metal atoms lose electrons to form positive ions.

Question 6

The non metal atoms gain… to form….

Answer 6

Gain electrons to form negative ions.

Question 7

Ionic bonding?

Answer 7

Opposite charges of ions mean that they’re strong attracted to each other
(lose electrons to form positive ions)
(gain electrons to form negative ions)

Question 8

Covalent bonding?

Answer 8

A compound formed from non metals consists of molecules. Each atom shares an electron with another atom,