Chemistry, 03.07.2019 07:30 AutismRobotrix1999

Hydrogen cyanide is used in the manufacture of clear plastics such as lucite and plexiglas. it is prepared from ammonia and natural gas (ch4). 2nh3(g) + 3o2(g) + 2ch4(g) → 2hcn(g) + 6h2o(g) the reaction evolves 939 kj of heat per 2 mol hcn formed. what is the value of qrxn? how do i solve this? !

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