M3E1T1H4A1N1E1
12 points
METHANE is validvalid
a flammable gas [n METHANES]
a colourless odourless flammable gas, CH4, the simplest of the alkanes [n -S]
a flammable gas [n METHANES]
a colourless odourless flammable gas, CH4, the simplest of the alkanes [n -S]