MgCl2 fully dissociates into Mg2+ and Cl- ions when mixed with water. Therefore, the bonds between Mg2+ and Cl- in MgCl2 can be described as  a) ionic  b) polar covalent  c) nonpolar covalent  d)hydrogen bonds

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A: Electronegativity is a measure of the tendency of an atom to attract a bonding pair of electrons.

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A:

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Q: how does oxygen obey the octet rule when reacting to form compounds

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A: Here is your answer..........

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A: a.

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A:

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Crystal Structures

Solids are present all around us. They have different properties and applications. Diamond and graphite are two well-known solids. Diamond is the hardest material in the world and is used in making jewelry. Graphite on the other hand is soft. The lead of your pencil is graphite. Why are they so different in appearance and properties despite the fact they are chemically the same? Both are allotropes of carbon. The answer lies in the structure, the way constituent particles are arranged in the solids.