Charcoal and copper are black how do you distinguish

What are the first three quantum numbers for the electrons located in subshell 2s?

Hey guys so i need to know what is _nh3+> nh4oh ~chemistry~

Which answer tells the reason the earth’s climate is getting warmer? too many animals are becoming extinct. large glaciers are melting in antarctica. the earth is moving closer to the sun. driving cars gives off gases that trap heat in the atmosphere.