Many people use methane gas (CH4), typically called pure gas, in your house for cooking. Once the fuel is heated (by a flame or spark) and if there is more than enough oxygen while in the atmosphere, the molecules will crack aside and reform entirely as h2o and carbon dioxide. https://elliotqhwly.qodsblog.com/36638439/indicators-on-car-park-extract-systems-you-should-know