Common Gases:
* Carbon dioxide (CO2): Molecular weight 44 g/mol
* Sulfur dioxide (SO2): Molecular weight 64 g/mol
* Argon (Ar): Molecular weight 40 g/mol
* Krypton (Kr): Molecular weight 84 g/mol
* Xenon (Xe): Molecular weight 131 g/mol
* Radon (Rn): Molecular weight 222 g/mol
Other Gases:
* Chlorine (Cl2): Molecular weight 71 g/mol
* Hydrogen sulfide (H2S): Molecular weight 34 g/mol
* Ammonia (NH3): Molecular weight 17 g/mol
* Methane (CH4): Molecular weight 16 g/mol (lighter than oxygen, but denser than air)
Note:
* The weight of a gas is measured in grams per mole (g/mol).
* "Heavier" refers to the density of the gas, which depends on its molecular weight and temperature.
* The density of a gas is proportional to its molecular weight, meaning heavier molecules will generally result in a denser gas.
Let me know if you'd like more examples!
