For which of the following is heat energy absorbed?
2 answers:
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Answer:
The compound is ionic
The compound has a high melting point
The compound will conduct electricity in aqueous solution
The compound will be soluble in water
Explanation:
Now, let us consider the nature of the compound formed when a metal X looses two electrons and a non metal Y accepts one electron.
The compound formed must be ionic in nature with a formula XY2. Ionic compounds are formed by transfer of electrons from metals to nonmetals.
The ionic substance formed is always soluble in water with a high melting point. Usually, ionic solids do not conduct electricity in the solid state because the charge carriers (ions) are tightly bound in the crystal structure while in the solid state. In aqueous solution, the ions are relatively free hence ionic substances conduct electricity in aqueous solution.
