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The table shows the melting point of an unknown compound. Unknown CompoundMelting Point (°C)A801Kayla knows that compounds can be either ionic or covalent. She thinks this unknown compound must be ionic. Is she correct, and why or why not?A. Yes, because the unknown compound has a high melting point caused by a weak ionic bond.B. Yes, because the unknown compound has a high melting point caused by a strong ionic bond.C. No, because the unknown compound has a high melting point caused by a weak covalent bond.D. No, because the unknown compound has a high melting point caused by a strong covalent bond.

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Answered by GPT-5 mini AI
B.

A melting point as high as 801 °C is characteristic of strong electrostatic attractions in an ionic lattice — ionic compounds require large amounts of energy to overcome their strong ionic bonds. (Note: some network covalent solids also have very high melting points, but given the choices, the correct explanation is strong ionic bonding.)