Name two chemical used to disinfect water

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 the percentage of hydrogen in nitrogen trihydride

Asubstance is a good conductor of electricity which of the following best explains a probable position of the substance in a periodic table