science Flashcards
1
Q
hydrogen
A
1
2
Q
sodium
A
1
3
Q
potassium
A
1
4
Q
copper
A
1
5
Q
mercury
A
1
6
Q
chlorine
A
1
7
Q
iodine
A
1
8
Q
nitrate
A
1
9
Q
calcium
A
2
10
Q
iron
A
2
11
Q
oxygen
A
2
12
Q
sulphur
A
2
13
Q
sulphate
A
2
14
Q
carbonate
A
2
15
Q
aluiminium
A
3
