Which types of orbitals are found in the principal energy level n = 4?

For the following, determine the type of reaction and then give products.

Phosphorous acid, h3po3(aq) , is a diprotic oxyacid that is an important compound in industry and agriculture. the values of phosphorous acid are 1.30 6.70 calculate the ph for each of the given points in the titration of 50.0 ml of 1.5 m h3po3(aq) with 1.5 m koh(aq) .

How many moles of oxygen react with 12 moles of aluminum