A 0.47 kg squirrel jumps from a tree branch that is 3.5 m high to the top of a bird feeder that is 1.2 m high. how much gravitational potential energy does the squirrel lose during the jump? Show your work.

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?