Answer:
The generic equation for a combustion reaction is AB + O2 à AO + BO
Explanation:
 
        
             
        
        
        
Answer:
Chemical compounds all have different melting points.
Explanation:
chemical compounds all have different freezing and boiling points. Different chemical compounds means they will have different chemical structures. 
 
        
             
        
        
        
Answer:
D is the answer to your question in my opinion