What is the equilibrium expression for: Fe3O4(s) + 4H2(g) <=> 3Fe(s) + 4H2O(g)
Kc =

a)[Fe]3 [H2O]4 / [Fe3O4] [H2]4
b)[Fe3O4] [H2]4 / [Fe]3 [H2O]4
c)[H2O]4 / [H2]4
d)[Fe] [H2O] / [Fe3O4] [H2]

**40** points asapessay questions (10 points possible) clear image of next, create your own scenario. it can be one of your own real experiences or one you make up. use imagery in your writing to give your instructor a the setting and an action taking pace in your writing explain the structure and functions of the skin at work in your scenario. !

Two things that biomedical has invented or innovated

Who determined the nature of chemical bonds?