<span>There's a trend in electronegativity. The bottom left of periodic table is the lowest (0.7) and the upper right is the highest (4.0). The most polar is the greatest difference in electronegavity.
hbr- 1~ , hi- 0.5~ ,hcl - 1.3~ , hf-1.8 so,hf is the answer</span>
        
             
        
        
        
Answer:
q= 110.5 ke
Explanation:
Dipole moment is the product of the separation of the ends of a dipole and the magnitude of the charges.
μ = q * d
μ= Dipole moment (1.93 D)
q= partial charge on each pole
d= separation between the poles(109 pm).
e= electronic charge ( 1.60217662 × 10⁻¹⁹ coulombs)
So,
q=  coulombs
 coulombs
q =  e
 e
q = 1.105 * 10⁵ e
q= 110.5 ke
 
        
             
        
        
        
<h3>
Answer:</h3>
4551.37 Pascals 
<h3>
Explanation:</h3>
The pressure refers to the force exerted by a substance per unit area.
The pressure is liquid is calculated by;
P = height × density × gravitational acceleration 
In this case;
Height = 636.2 mm 
Density = 0.7300 g/cm³
g = 9.8 N/kg 
We need to convert mm to m and g/cm³ to kg/m³
Therefore;
Height = 636.2 mm ÷1000
            = 0.6362 m
Density = 0.73 g/cm³ × 1000 kg/m³
              = 730 kg/m³
Then, we can calculate the pressure;
Pressure = 0.6362 m × 730 kg/m³ × 9.8 N/kg 
               = 4551.3748 pascals
                = 4551.37 Pascals 
Therefore, the pressure of the column of decane is 4551.37 Pascals 
 
        
        
        
The answer is A- single bonds made by 1 atom to 3 other atoms within a molecule