Iron reacts with atmospheric oxygen to form iron oxide or ferric oxide. look at the chemical equation for this reaction: fe + o2 → fe2o3 this equation is unbalanced. which of the following is the correct balanced equation for this reaction?
4fe + 3o2 → 2fe2o3
3fe + 4o2 → 2fe2o3
2fe + 4o2 → 3fe2o3
3fe + 3o2 → 4fe2o3
4fe + 4o2 → 3fe2o3

The right answer is 4 Fe + 3O2 → 2 Fe2O3.

Triferium tetroxide is a chemical compound of formula Fe3O4. It is an iron oxide present in the natural environment in the form of magnetite, a crystallized black mineral; in the laboratory, it is generally in the form of a black powder.

a motor homunculus represents a map of brain areas dedicated to motor processing for different anatomical divisions of the body.

homunculus represents the importance of various parts of your body as seen by your brain. as a result, they take up a lot of brain space. although the cortical homunculus is a curiosity, penfield's work in mapping the brain's relationship to the body was invaluable.

affects the water bodies: excessive use of fertilizers causes eutrophication. the fertilizers which are used on plants affect the quality of land on which it is used, further causing erosion of soil. the fertilizers used on plants contain harmful chemical fumes which affect the environment.