How many times will our work go into the kiln?

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

Astudent reacts 13 moles of iron with 21 moles of oxygen according to the following equation:

Amixture initially contains a, b, and c in the following concentrations: [a] = 0.300 m , [b] = 1.05 m , and [c] = 0.550 m . the following reaction occurs and equilibrium is established: a+2b⇌c at equilibrium, [a] = 0.140 m and [c] = 0.710 m . calculate the value of the equilibrium constant, kc.