Answer:
Here's what I find.
Explanation:



The sign of ΔH changes when you reverse the reaction.
Mg+Cl2--> MgCl2
Magnesium plus chlorine equals magnesium chloride
Answer:
The first one has the weakest bond
Explanation:
The number of atoms together shows how strong the bonds in the second bond it is 4 bonds, the third is 8 bonds, the 4th one is 4 bonds thus why the first bond is the weakest.
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