Answer:
they are indeed very strong
 
        
             
        
        
        
I think that it is D because the higher the molecular mass, the higher it's boiling point. I hope that helped:) Bye!
        
             
        
        
        
Answer:
<h2>0.15 moles</h2>
Explanation:
To find the number of moles in a substance given it's number of entities we use the formula

where n is the number of moles 
N is the number of entities
L is the Avogadro's constant which is 
6.02 × 10²³ entities.
From the question we have

We have the final answer as
<h3>0.15 moles</h3>
Hope this helps you
 
        
             
        
        
        
Answer:
 SN2
Explanation:
The first step of ether cleavage is the protonation of the ether since ROH is a better leaving group than RO-. 
The second step of the reaction may proceed by either SN1 or SN2 mechanism depending on the structure of the ether. Methyl and primary ethers react with HI by SN2 mechanism while tertiary ethers react with HI by SN1 mechanism. Secondary ethers react with HI by a mixture of both mechanisms.
Dipentyl ether is a primary ether hence when treated with HI, the reaction with HI proceeds by SN2 mechanism as explained above.