Identify the precipitate that forms when aqueous solutions of mercury(II) chloride and potassium sulfide are combined. Write the equation for the possible double-displacement reaction a. k.a. write the formula equation, spectator ions, and the net ionic equation for the reaction

ca has a crystalline lattice with positive ions (since it is a metal, metals are positively charged) and electrons flow freely in its structure since the ca atoms have a large nuclear radius so the electrons are not tightly held, therefore the electrons can flow freely since they are not being highly attracted by the nucleus. moreover, one of the properties of metals are that they are conductors of electricity, thus proving ca is the element.