A pure substance, such as gold, melts at different temperatures, depending on its size: Explain why you agree or disagree

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.)

  the mississippians were considered to be  horticulturalists, which means they were

How many moles is 14.5 cm^3 of platinum? the density of platinum is 21.45 g/cm^3.