Random or ionic bond pattern
        
             
        
        
        
Answer:
=C₄H₄O₂
Explanation:
Given the empirical formula of a molecule, the he the quotient of the molecular mas and and the empirical mass=constant.
84.0 g/mol/mass of(C₂H₂O)=constant
=84/(12×2+1×2×16)
=84/42
=2
Therefore, the molecular formula is (C₂H₂O)₂=C₄H₄O₂
 
        
                    
             
        
        
        
Answer:
In the same way, a solution with a pH of 5 contains 10-5mol/l of hydrogen ions, a solution with a pH of 6 contains 10-6mol/l of hydrogen ions, while the solution with a pH of 7 contains 10-7mol/l of hydrogen ions.
Explanation:
 
        
             
        
        
        
Answer:
c
Explanation:
because the fire gives off radiation
 
        
             
        
        
        
Answer:
i think the first one is gravity and second one is rotation 
Explanation: