Nitrogen makes up around 78% of the total atmosphere.
The answer u are looking for is b
Answer:
KBr
Explanation
KBr is an ionic compound which have very high BP since they exist as 3D crystals
Methyl Bromide, CH3Br. is a covalent compound which have low BP since they exist as individual molecules
The reactant is what you begin with.
The product is what you end up with (so the answer is B)
