Answer:
Linear molecule with two domains
Explanation:
 
        
             
        
        
        
Answer:
(a)57.48 percent (b) 29.45 percent
Explanation:
copper(II) bromide is 29.45 percent copper and 71.54 percent bromine. so the first element percentage composition is always the percentage composition of the compound.
that goes same with sodium hydroxide. it  is 57.48 percent sodium, 40 percent oxygen, and 2.52 percent hydrogen.
 
        
             
        
        
        
When 
Aldehyde is reacted with 
Alcohol in the presence of 
acid the it gives 
Hemiacetal, Hemiacetal on further reaction with acid and alcohol gives 
Acetal.
In given problem the aldehyde given is 
P<span>
henylacetaldehyde and alcohol is 
Methanol. The reaction is done stepwise as shown below,</span>