2. sodium reacts with oxygen to form sodium oxide and has the following balanced chemical equation: 4 na + o2 --> 2 na2o. when you have 30 g of na how many moles of na2o are produced?

The skeletal system performs a variety of functions that are crucial to maintaining life processes. what function is performed in the bone marrow, but not in the ossified bones of the skeleton? a oxygen transportation c mineral storage b. muscle attachment d red blood cell production

How will the emission of an alpha particle affect the atomic number of an atom

Calculate the energy required to ionize a hydrogen atom to an excited state where the electron is initially in the n = 5 energy level. report your answer in kilojoules