Grills typically generate heat from below the food; but it depends on thetype of grill. There are three main fuel sources that almost all grills are built to use – charcoal, gas (propane or natural gas), and wood pellets. No matter the fuel source, the idea is the same. Create a fl...
For example, a chain with just one carbon atom in it (CH4) is the lightest chain, known as methane. Methane is a gas so light that it floats like helium. As the chains get longer, they get heavier. The first four chains -- CH4 (methane), C2H6 (ethane), C3H8 (propane) and ...