In the diagram below, two students are experimenting with a jump rope. The rope is showing some wave activity. What is the medium for the waves?

A: air

B: rope

C: students

D: moisture

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.)