4Na + 02
2 Na, o
How many moles of O, are needed to produce 34.7 g of Na, O?

Determine the wavelength of the light absorbed when an electron in a hydrogen atom makes a transition from an orbital in the n=3 level to an orbital in the n=7 level.

How many moles of carbon dioxide will form if 2.5 moles of c3h8 is burned

Many ionic compounds and a few highly polar covalent compounds are because they completely ionize in water to create a solution filled with charged ions that can conduct an electric current.