Which statement best describes the properties of covalent compounds?

They are always solid at room temperature, are brittle, and have a high melting point.

They may be gases, liquids, or solids at room temperature, and have a low melting and boiling point.

They are always composed of an equal proportion of cations to anions.

They are always liquid at room temperature, and have a high melting and boiling point.

They are good conductors of heat and electricity, and are ductile and malleable.

Question

Which statement best describes the properties of covalent compounds?



They are always solid at room temperature, are brittle, and have a high melting point. 



They may be gases, liquids, or solids at room temperature, and have a low melting and boiling point. 



They are always composed of an equal proportion of cations to anions. 



They are always liquid at room temperature, and have a high melting and boiling point. 



They are good conductors of heat and electricity, and are ductile and malleable.

joannablackwelder · Answer

http://antoine.frostburg.edu/chem/senese/101/solids/faq/properties-of-molecular-compounds.shtml