It would be an physical change ; if you melt butter the butter goes from a solid to a liquid so therefore the physical state is changed.
        
             
        
        
        
Stationary Front: a front that is not moving. When a warm or cold front stops moving, it becomes a stationary front.
        
             
        
        
        
Answer:
Coefficient of 
Coefficient of  =8
=8
Explanation:
We are given that  a reaction in which  reacts with
 reacts with 
We have to find the coefficient of each reactants in balanced reaction

Coefficient is defined the constant  value multiplied with a reactant in a reaction.
Coefficient of  =3
=3
Coefficient of 
Coefficient of 
Coefficient of 
Coefficient of 
Coefficient of KOH=2
Hence, Coefficient of  and coefficient of
 and coefficient of 