What happens when matter changes state?

The temperature remains the same.

The mass of the sample is altered.

The chemical composition remains the same.

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.)

What is a metal replacement reaction

Under normal conditions, describe how increasing the temperatures effects the solubility of a typical salt