Formula |
Name |
How
many different elements? |
Name
the elements |
Number
of atoms of each element |
Total
number of atoms |
NaCl |
Sodium chloride (table salt) |
2 |
Sodium |
Sodiu=1 Chlorine=1 |
2 |
SO2 |
Sulfur
dioxide |
2 |
Sulfur Oxygen |
Sulfur=
1 Oxygen=2 |
3 |
NH3 |
Ammonia |
2 |
Nitrogen H ydrogen |
Nitrogen=1 Hydrogen=3 |
4 |
C6H12O6 |
Glucose |
3 |
Carbon Hydrogen Oxygen |
Carbon=6 Hydrogen=12 Oxygen=6 |
24 |
CaCO3 |
Calcium carbonate (limestone) |
3 |
Calcium Carbon Oxygen |
Calcium=1 C arbon=1 Oxygen =3 |
5 |
MgSO4 |
Magnesium sulfate (Epsom salts) |
3 |
Magnesium Sulfur Oxygen |
Magnesium=1 Sulfur=1 Oxygen =4 |
6 |
NaOH |
Sodium hydroxide (Caustic soda) |
3 |
Sodium Oxygen Hydrogen |
Sodium=1 Oxygen=1 Hydrogen=1 |
3 |
Fe2O3 |
Iron oxide (rust) |
2 |
Iron Oxygen |
Iron=2 Oxygen=3 |
5 |
NaHCO3 |
Sodium hydrogen carbonate (baking soda) |
4 |
Sodium Hydrogen Carbon Oxygen |
Sodium=1 Hydrogen=1 Carbon=1 Oxygen =3 |
6 |
CO2 |
Carbon dioxide (Dry ice) |
2 |
Carbon Oxygen |
Carbon=1 Oxygen =2 |
3 |
C12H22O11 |
Sucrose (Table sugar) |
3 |
Carbon Oxygen Hydrogen |
Carbon=12 Oxygen =11 Hydrogen =22 |
45 |
Chemical formulae Exercises |
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Complete the table below. Below are the names and the symbols of some of the elements used. Na = sodium,
Cl = chlorine, S = sulfur, O =oxygen, N =nitrogen, H = hydrogen,
Solution |