The interior of a refrigerator has a volume of 0.600 m3 . The temperature inside the refrigerator in 282 K, and the pressure is 101 kPa Assuming air consists mainly of nitrogen N2, what is the mass of air inside the refrigerator

Iron is a transition metal with multiple oxidation numbers. (answer the following) a. what is the iron (ii) ion? how does it differ from the iron (iii) ion? b. if iron were to bond with oxygen, predict the formula for each oxidation number of iron. c. how would each formula be named?