Answer: Lexington and Concord 
Explanation: The British were trying to find weapons and could not find them.
        
             
        
        
        
Answer:
What do you mean what happened?
Explanation:
???
 
        
             
        
        
        
Moles = 15.5 g / 40 g/mol = 0.3875 mol
M = 0.3875 mol / 0.250 L = 1.55M
        
                    
             
        
        
        
20 grams  is probably the mass 
        
             
        
        
        
the very bottom of the ocean and they are relevant by most of the animals feed off of the animals that come out of he vents