Question

write the kc expression for Ni(s)+4co(g)_?Ni(co)4(g)​

Answer 1

Explanation:

When writing equilibrium expressions:

only aqueous and gaseous species are included in the equilibrium expression. Solids and liquids are ignored.

the coefficient of each compound in the reaction equation will be the exponent of their concentrations in the equilibrium expression

use brackets to indicate concentration; [ ]