C. citizens united v. federal election commission :)
        
             
        
        
        
C) to maintain a balance of power in Europe
 
        
             
        
        
        
I have no clue what that is
        
             
        
        
        
During 1811 Amedeo Avogadro ‘s hypothesis that at the same pressure and temperature equal volumes of all gases carries equalnumbers of molecules. It also distinguished that the accurate interpretation in the reaction of hydrogen with oxygen to create water, he explained the reaction showing what happens on an atomic and molecular scale using the theory of Dalton.