Hellium argon neon xenon krypton randon oxygen fluorine chlorine bromine
        
             
        
        
        
Answer:
Molecular mass
Explanation:
Molecular formulas is the actual number of atoms of each element in the compound while empirical formulas is the simplest or reduced ratio of the elements in the compound.
Thus,  
Molecular mass = n × Empirical mass
Where, n is any positive number from 1, 2, 3...
Thus if the molecular mass is known, then we can find the value of n which results to molecular formula.
 
        
             
        
        
        
Answer:
actually answer should be helium
 
        
                    
             
        
        
        
Answer:
Hello
12 grams
The mass of one mole of carbon-12 atoms is 12 grams.
Hope it helps You.....
Explanation:
 
        
                    
             
        
        
        
Answer:
A. Treated water from the plant would affect communities downriver.
Explanation: