It weighs:
70.548 Ounces 
4.409 Pounds
2,000 Grams 
2 Kilograms
You choose.. Hope it helps!
        
             
        
        
        
Answer:
hydrogen and oxygen combine explosively in a single raction 
Explanation:
The reason is Molecules of hydrogen react with oxygen violently to break the initial molecular bonds and form new one between the atoms of the two elements. The reaction results into an explosive release of energy and the production of water because the products of the reaction are at a lower energy level
 
        
             
        
        
        
"Hydrogen Bonds" is the correct answer