What does ch4 represent in the balanced chemical equation shown below?
c + 2h2 ch4

a. one atom of ch4
b. five atoms of ch4
c. one molecule of ch4
d. 1g of ch4

4.25g sample of solid ammonium nitrate dissolves in 60.0g of water in a coffee-cup calorimeter, the temperature drops from 22.0 c to 16.9 c. assume that the specific heat of the solution is the same as that of pure water. calculate delta(h) (in kj/mol nh4no3) for the solution proces.