. . . . "Chemistry is the science of matter dealing with the composition of substances and their properties and reactions. It is a prerequisite of Explosives and Refining."@en . . "Chemistry (Civ1)"@en . . "Chemistry is the science of matter dealing with the composition of substances and their properties and reactions. It is a prerequisite of Explosives and Refining."@en . . . . "None"@en . .