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? !

geosphere and hydrosphere.

this is because the geosphere has to do with geological events, while the hydrosphere controls all water on earth.

answer: i have one answer

acids are substances that ionize (break off) in an aqueous solution to produce hydrogen (h+) ions

explanation:

hope this and sorry i could only come up with one answer!