Iron+Oxygen->Iron Oxide (Rust) 2Fe+302->Fe302 Iron Oxide, formed from Iron and Oxygen, is a new: A. Element B. Atom C. Compound D. Solution

The circles, or orbits, for electrons are called energy levels. each level can hold only a certain number of electrons. add electrons to each level until you can't add any more. how many electrons can each level hold?

How are proteins and nucleic acids related? they both provide energy. they both carry genetic information. the structure of proteins is determined by nucleic acids. the subunits of nucleic acids are also the subunits of proteins.

Is there any solid scientific evidence that humans have been cloned?