Chapter 20 - Elements, Compounds and Mixtures Flashcards
1
Q
What is a molecule and give an example
A
Composed of two or more atoms chemically combined e.g Water - H20
2
Q
What are compounds and give an example
A
Consist of two or more elements chemically combined e.g. Iron sulfide - FeS
3
Q
What is a mixture and give an example
A
Made up of two or more substances mingled together but not chemically combined e.g. Tea and sugar
4
Q
An element
A
A substance made up of only one type of atom e.g. Gold
5
Q
H
A
Hydrogen
6
Q
C
A
Carbon
7
Q
N
A
nitrogen
8
Q
O
A
Oxygen
9
Q
S
A
Sulphur
10
Q
Al
A
Aluminium
11
Q
Fe
A
Iron
12
Q
Zn
A
Zinc
13
Q
Ag
A
Silver
14
Q
Au
A
Gold
15
Q
Na
A
Sodium
