Answer:
In the first combination neutralization takes place to give a salt. So, solution 'a' is neutral in nature.
In the solution 'c', both salts are resulted by the combination of weak base and strong acid. The combination of these salts suppresses the acidity.
In last combination basic nature is observed due to the presence of CN⁻ ions. Thus, the solution 'd' is basic in nature.
Out of the five given solutions, 0.0100 M in HF and 0.0100 M in KBr is most acidic.  Therefore, solution 'b' is most acidic in nature.
Explanation:
 
        
             
        
        
        
Covalent bond forms between the oxygen and hydrogen atoms.
(I attached a picture that could help)
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Answer:
B
Explanation:
the electrical charges of nonpolar molecules are evenly distributed across the molecule
 
        
             
        
        
        
1. Complete ionization in water.  
2. Ionization constant.  
3. A good hydrogen-ion acceptor.  
4. Weak acid.  
5. This base ionizes slightly in aqueous.
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