# What are the typical conservation laws, and how do they apply to everyday life?

Likewise, if I fill my car up with 10 litres of gasoline, if I drive for 100 km or so, the car will lose this mass of gasoline (5-6 kg whatever it is). This mass will be lost to the atmosphere as carbon dioxide and water (of course the oxygen that combusts the gasoline comes from the atmosphere, but this is also quantitatively transformed). The energy content of the $C - H$ bonds (as they react with oxygen) has been used to propel the car, which again is something that I could quantitatively measure.