<P> The gas can be natural gas ( which is mainly methane ) or a liquefied petroleum gas , such as propane , butane , or a mixture of both . </P>
<P> The gas can be natural gas ( which is mainly methane ) or a liquefied petroleum gas , such as propane , butane , or a mixture of both . </P>
give the name of a substance that is used as a fuel in the bunsen burner
give the name of a substance that is used as a fuel in the bunsen burner
natural gas propane butane ,
natural gas propane butane ,