Alexander iii's program of russification

I believe the answer is 

- called for the establishment of a constitutional monarchy 
- emphasized the use of the Russian language 
                                                         
    I hope this helps. :)

So  if  the sum of the enthalpies of the reactants is greater than the products, the  reaction  will be  exothermic.  if  the products side has a larger enthalpy, the  reaction  is  endothermic. you may wonder why  endothermic reactions, which soak up energy or enthalpy from the environment, even happen