Chemistry Practice Problems Chemical Bonds Practice Problems Solution: Please Classify each of the following diatomic spe...

Solution: Please Classify each of the following diatomic species as ionic, polar covalent or non polar covalent. 1. O2 2. CaO 3. Br2 4. HBr 5.LiBr

Problem

Please Classify each of the following diatomic species as ionic, polar covalent or non polar covalent. 

1. O

2. CaO 

3. Br2 

4. HBr 

5.LiBr

Solution

We’re being asked to determine if the compounds are held together by polar/non-polar covalent bond or ionic bond among the given choices. 


covalent bond is formed by the sharing of electrons by two non-metals. 


An ionic bond, on the other hand, is a bond formed between a metal and a non-metal.



Recall that for a covalent bond to be:

• Polar: electronegativity difference must be greater than 0.5

• Non-polar: electronegativity difference must be less than 0.5


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