Mg(NO3)2 --> MgO + NO2 + O2 please answer algebraic way and show work I’ll mark brainliest

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.)

The number at the end of an isotope’s name is the number.

Tell me the iupac name of the following compounds: