1. Name……………………………………………..
Representing Elements
Part 1: Which of these are compounds? (Y/N)
1 O2 7 H2S04 13 CO2
2 H2O 8 N2 14 HN03
3 NH3 9 Fe2O3 15 C60
4 H2 10 Ne 16 SO2
5 C6H12O6 11 CH4 17 NaCl
6 SO3 12 S8 18 CuS04
Whichhas the most oxygenatoms?
(TickOne)
O2
Fe2O3
H2S04
C6H12O6
Whichhas the most hydrogenatoms?
(TickOne)
C6H12O6
C6H14
H2S04
NH3
Whichhas the most nitrogenatoms?
(TickOne)
HN03
NH3
N2
CH4
Whichhas the most carbon atoms?
(TickOne)
CO2
C2H6
CO
CH4
Which molecule in each row has the most bonds? ( the correct molecule)