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Vaselesa [24]
3 years ago
12

What do the following have in common: MgCl2, AlF3, CaI2, KCl

Chemistry
2 answers:
arsen [322]3 years ago
8 0

Answer:

They are salts, ionic compounds

Explanation:

To know if they are covalent or ionic we need to check their difference in electronegativity. As an example mgcl2, mg has electronegativity of 1.2 and cl 3 so 3-1.2=1.8 which is bigger than 1.7 means it's ionic therefore they are salts

Kay [80]3 years ago
5 0
They are salts and are all ionic compounds because in the formula one of the element has to have a positive and the other a negative charge.
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