What is the best explanation for the fact that a solution of nano2(aq) is basic? no2– is hydrolyzed with the formation of oh –(aq) ions. na+ is hydrolyzed with the formation of oh –(aq) ions. nano2(aq) decreases the ka of hno2(aq).nano2(aq) increases the ka of hno2(aq).

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.)

Describe what happens to the molecules as water goes from ice to liquid to vapor. be sure to explain what happens to the temperature during the phase changes.

Air can be considered a mixture. which statement does not explain why?