Answer:
The second answer, because when something saturated, it has the maximum possible number of hydrogen atoms. 
 
        
                    
             
        
        
        
The answer is D. I did that and i got it right.
        
                    
             
        
        
        
There are many combinations because it is not all about the number of chemicals, but also about the size of the strand. The longer the strand the more combinations there are and more variations and various lengths provide various results.
        
             
        
        
        
Answer:
The behavior of molecules in different phases of matter represents a balance between the kinetic energies of the molecules and the attractive forces between them. All molecules are attracted to each other. The molecules are in the solid-state. At higher temperatures, the kinetic energy of the molecules is higher.
 
        
                    
             
        
        
        
The inert gases like neon,argon ,krypton have complete shells