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Which statement best describes the properties of covalent compounds?

A. They are always solid at room temperature, are brittle, and have a high melting point.
B. They may be gases, liquids, or solids at room temperature, and have a low melting and boiling point.
C. They are always composed of an equal proportion of cations to anions.
D. They are always liquid at room temperature, and have a high melting and boiling point.
E. They are good conductors of heat and electricity, and are ductile and malleable.


Sagot :

Final answer:

Covalent compounds have lower melting and boiling points, are not soluble in water, and do not conduct electricity.


Explanation:

Covalent compounds exhibit properties such as lower melting and boiling points compared to ionic compounds. They are often not soluble in water, do not conduct electricity, and can be gases, liquids, or solids at room temperature.


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