Which characteristic best explains the difference in melting behavior of covalent substances and ionic substances? Ionic substances have weaker intermolecular attractions. Ionic substances usually have stronger atomic bonds. Covalent substances have weaker intermolecular attractions. Covalent substances usually have stronger atomic bonds.

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Answer:

Option C is correct

Explanation:

Covalent substances have weaker intermolecular attractions.

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The characteristic that best explains the difference in melting behaviors is

  • Covalent substances have weaker intermolecular attractions  ( C )

The melting point of covalent substances ( i.e. substances bounded by covalent bonding ) is lower than the melting point of ionic substances, this is because of the weak intermolecular attractions which exists in covalent compounds and this makes atoms in covalent substance to dissociate easily .

Hence we can conclude that the characteristic that best explains the difference in melting behaviors is Covalent substances have weaker intermolecular attractions.

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