For 10 points, identify this simplest alkane with formula CH4.
This organic compound may be formed by reacting aluminum carbide with water. The nickel-catalyzed Sabatier reaction is usually applied after the electrolysis of water in a process for synthesizing this compound. A sulfate reduction is typically coupled to the anaerobic oxidation of this compound. Water-gas shift is usually performed in conjunction with the steam reforming of this compound. The chlorination of this compound is a standard free radical halogenation reaction that can be used to create (*) chloroform. When this compound is trapped in crystallized water, it can form its namesake clathrates. This compound is typically produced by reacting carbon dioxide with hydrogen gas. The presence of this compound in Mars' atmosphere has led some to speculate about the possibility of extraterrestrial life there, and it is a major component of natural gas. For 10 points, identify this simplest alkane with formula CH4.
This organic compound may be formed by reacting aluminum carbide with water.
methane [accept  CH4 before mentioned]