What is the definition of "warmth"

Apush or pull that moves or changes and object when to objects touch

To find the enthalpy of a reaction in the lab, you measured the of the reactants and the change during the reaction.

Which formula equation represents the burning of sulfur to produce sulfur dioxide? s(s) + o2(g) 4502(9) 2h2s(s) + 302(g) —> 2h20(0) + 2502(9) 4fes2+1102 —> 2fe2o3 + 8502 2802(g) + o2(9) v205 , 2503(9)