If 4.5 moles of x and 5.5 moles of y react according to the hypothetical reaction below, how many moles of the excess reactant will be left over at the end of the reaction? 2x + 3y “yields”/ x2y3 0.8 mol x left over 1.8 mol y left over 2.3 mol x left over 3.7 mol y left over

Hydrogenation reactions, in which h2 and an "unsaturated" organic compound combine, are used in the food, fuel, and polymer industries. in the simplest case, ethene (c2h4) and h2 form ethane (c2h6). if 140 kj is given off per mole of c2h4 reacting, how much heat (in mj) is released when 12 kg of c2h6 forms?