Answer:
d hope this helps u hhwjs GD jehehj
 
        
                    
             
        
        
        
167 mL
P1V1 = P2V2
P1 = .8 atm
V1 = 250 mL
P2 = 1.2 atm
Solve for V2 —> V2 = P1V1/P2
V2 = (0.8 atm)(250 mL) / (1.2 atm) = 167 mL
        
             
        
        
        
What effect does removing predators have on prey? 
:It means that as they are removed the predators go hungry and they could become extinct.
Hope I helped!
        
                    
             
        
        
        
Answer:
The electronegativity from order of least to highest is:
Ne, Ca, Fe, F
Explanation:
Elements in the periodic table have been arranged based on their level of electronegativity (which is the ability of an atom to attract electrons). 
According to Paulings scale of rating elements based on their electronegativity, the electronegativity value of Fe, Ca, Ne, and F are 1.83, 1, 0 and 3.98 respectively. 
Hence, based on Pauling scale, the order of electronegativity from least to highest is:
Ne > Ca > Fe > F