If the balance indicated that the evaporating dish has a mass of 44.8 g and you want to have exactly 5.0 g of copper. what should be the balance read with the copper in the evaporating dish

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.)

In 2002, the rare earth elements mine in mountain pass, california was closed because

What happens to the temperature of a substance when the average kinetic energy of its particles increases?