Because it is the other way around: Household gas (group name, mixture, not pure) may contain methane gas (chemical name for compound: CH4) among other gasses.
Yes, coupled with the amount of energy that is imparted to it. The more energy that is applied, the brighter the light until you reach the full saturation level. Different gasses ionize and emit...
Not all gasolines contain methanol. Methanol is an oxygenate and is distilled. When Methanol is used all Major Manufacturers discourage mixtures above 10%.The other Oxygenates used are:Ethanol which...