how many moles of aluminim are needed to react completely with 3.2 moles of iron(II) oxide to form solid iron and aluminun oxide?

Calculate the change in entropy if br2(l) is converted into gaseous br atoms. s° for br2(l) = 152.2 j/(mol•k) s° for br2(g) = 245.5 j/(mol•k) s° for br(g) = 175.0 j/(mol•k)

You have 125g of a certain seasoning and are told that it contains 76.0 g of salt what is the percentage of salt by mass in this seasoning

What happened to the amount of carbon dioxide in the atmosphere from 2010–2017?