Consider the reaction:
2Mn(s) +O2(g) => Mn2O3(s);AH° = -959.0 kJ
Find AH for the following reaction:
2Mn2O3(s) => 4Mn(s) + 302(g)
+959.0 kJ
+1918 kJ
-3836 kJ
O-1918 kJ
+3836 kJ

Suppose you have designed a new thermometer called the x thermometer. on the x scale the boiling point of water is 129 ? x and the freezing point of water is 13 ? x. part a at what temperature are the readings on the fahrenheit and x thermometers the same?

Find the number of grams of hcl needed to react completely with .50 moles of magnesium.

In vapor-liquid equilibrium in a binary mixture, both components are generally present in both phases. how many degrees of freedom are there for such a system? the reaction between nitrogen and hydrogen to form ammonia occurs in the gas phase. how many degrees of freedom are there for this system? steam and coal react at high temperatures to form hydrogen, carbon monoxide, carbon dioxide, and methane. the following reactions have been suggested as being involved in the chemical transformation: