Which is a better conductor of eclectic current: a solid ionic compound or a melted ionic compound

Which object forms when a supergiant runs out of fuel? a red giant a black hole a white dwarf a neutron star

Silver tarnishes as silver metal reacts with hydrogen sulfide, h2s, in the air. in this reaction, dark silver sulfide, au2s, covers the surface of silver. when silver is polished, this coating of silver sulfide can be removed from the surface. this makes the silver shiny again. enter the coefficients that balance the tarnishing reaction equation. (type 1 for no coefficient.)

Type the letter that represents the correct location for each particle type below.