What is the unsymmetrical breaking of covalent bonds

If a reaction has g of -136kj at 110°c, will it be spontaneous at this temperature (110°c)? yes or no

Aroom with dimensions 7.00m×8.00m×2.50m is to be filled with pure oxygen at 22.0∘c and 1.00 atm. the molar mass of oxygen is 32.0 g/mol. how many moles noxygen of oxygen are required to fill the room? what is the mass moxygen of this oxygen?

How many moles of water are created if 3 moles of hydrogen react completely with excess oxygen?