"false" . "1" . . "atmosphere_moles_of_ethene"@en . "The construction \"atmosphere_moles_of_X\" means the total number of moles of X in the entire atmosphere, i.e. summed over the atmospheric column and over the entire globe. The chemical formula for ethene is C2H4. Ethene is a member of the group of hydrocarbons known as alkenes. There are standard names for the alkene group as well as for some of the individual species."@en . "SDN:P07::CF12N137" . . . "SDN:P07::CF12N137" . "SDN:P07::CF12N137" . . "2009-07-06 15:41:29.0" . . "accepted"@en . . "" . . "2009-07-06 15:41:29.0" . . "1" .