Question 2 of 11
How to play
the game
    
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 H2  +    Cl2      HCl  
H-H Cl-Cl H-Cl  
H-H Cl-Cl H-Cl  
H-H Cl-Cl H-Cl  
H-H Cl-Cl H-Cl  
H-H Cl-Cl H-Cl  
H-H Cl-Cl H-Cl  
H-H Cl-Cl H-Cl