Which property best indicates that a compound contains an ionic bond? it is insoluble in water. it can be easily flattened. it has a low boiling point. it conducts electricity when molten.
The best property for ionic bonds is its conductivity of electricity when molten. An experiment that can be recalled on this is the NaCl in water that is used to light up a bulb. Ionic compounds are highly soluble in water when dissociates. They also have high boiling points because of the ions integrated.
It conducts electricity when molten
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