Order the following wavelengths from longest to shortest

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.)

1. list three scientific reasons cockroaches may fly.

If 22.5 liters of oxygen reacted with excess of hydrogen, how many liters of water vapor could be produced?