PLEASE HURRY! Thank you to whoever helps!
Is 2Fe +2H2O -> Fe3O4 + 2H2 balanced?

The formation of a solid, also known as a is an indication of a chemical change. precipitate particulate particle powder

Consider the reaction: n2(g) + o2(g) ⇄ 2no(g) kc = 0.10 at 2000oc starting with initial concentrations of 0.040 mol/l of n2 and 0.040 mol/l of o2, calculate the equilibrium concentration of no in mol/l how would this be done?

Which element has the lowest electronegativity? calcium(ca) gallium(ga) selenium(se) bromine(br)