Question

NO , aleo3, H Mn o4 , Ni(No3)2,Pbs название и класс

Answer 1

NO оксид азота ||, NO2 оксид азота IV - оксиды
Al2O3 - оксид алюминия
HMnO4 - марганцевая кислота
Ni(NO3)2 - нитрат никеля - соль
РbS - сульфид свинца - соль

Answer 2

Based on the chemical formulas provided:

1. NO - Nitric oxide (nitrogen monoxide) - Not a class, it's a molecule.
2. Aleo3 - There seems to be a typo or error in the formula. It doesn't correspond to any known chemical compound.
3. H Mn O4 - Permanganic acid - Not a stable compound, usually exists as its salts (permanganates). Class: Acid
4. Ni(NO3)2 - Nickel (II) nitrate - Class: Ionic compound (nitrate is a polyatomic ion).
5. PbS - Lead (II) sulfide - Class: Ionic compound (sulfide is a polyatomic ion).

Please note that the second formula "aleo3" appears to be incorrect, and it's possible that you meant something else. If you could provide the correct formula or name, I'd be happy to help you further!