Final answer:
High electrical conductivity, sharing of electrons, and brittle solid structure are properties consistent with an ionically bonded substance in the ionic covalent properties lab.
Step-by-step explanation:
In the ionic covalent properties lab, a property consistent with an ionically bonded substance is high electrical conductivity. Ionic compounds conduct electricity well when molten or in aqueous solution, but not in the solid state. Sharing of electrons is a property consistent with covalent bonding. A low melting point is not typically associated with ionic compounds, as they tend to have high melting and boiling points. Lastly, a brittle solid structure is a property consistent with ionic compounds, as they often form crystalline structures that break easily.