Answer:
Diameter He = 0,1 nm.
Explanation:
Km to nm:
⇒ Diameter He = 1.0 E-13 Km * ( 1000 m / Km ) * (  1 E9 nm / m )
⇒ Diameter He = 0.1 nm
 
        
                    
             
        
        
        
1. Nickel (II) Bromide
2. Iron (II) Oxide
3. Iron (III) Oxide
4. Tin (IV) Chloride
5. Lead (IV) tetrachloride
6. Tin (II) Bromide
7. Chromium (III) Phosphide
8. Iron (II) Fluoride
9. Gold (III) Chloride
I hope this helps. I'm more than 100% sure that all the answers except for number 7 are correct. I knew all of them off the top of my head except for this one. I hope the other answer has the correct answer for that one. Good luck and have a great day.
 
        
             
        
        
        
Carbon carbon triple bonds
        
                    
             
        
        
        
Answer:  The image from the question has the correct answers.
Explanation:  
As summarized in the attached table.
 
        
             
        
        
        
D is the correct answer... if u need in depth let me know