How much heat, in kilojoules, is needed to produce 1850 grams of ammonia (NH3), according to the following reaction? 2 N2 + 6 H2O → 4 NH3 + 3 O2 ΔH = + 1530 kJ

Aphysical change is one that you can put in and remove like a ham sandwich. the stuff you put in there can be changem its not permanet. a chemical change is on that can't be change thats permanet. like when you make a cake and bake it. you can't get those ingredients back.

Rate law for this reaction israte of the reaction = k[a]²[b].second order in a  means concentration of a in power of two, and  first order in b means concentration of b in power of one.