If an equal number of moles of reactants are used, do the following equilibrium mixtures contain primarily reactants or products? Please note this question has 1 submission for each part. (a) HCN(aq) + H2O(l) equilibrium reaction arrow CN −(aq) + H3O+(aq) K = 6.2 10-10 products reactants (b) H2(g) + Cl2(g) equilibrium reaction arrow 2 HCl(g) K = 2.51 104 reactants products

For a: The equilibrium mixture contains primarily reactants.

For b: The equilibrium mixture contains primarily products.

Explanation:

There are 3 conditions:

For the given chemical reactions:

The chemical equation follows:

The expression of for above reaction follows:

As, , the reaction will be favored on the reactant side.

Hence, the equilibrium mixture contains primarily reactants.

The chemical equation follows:

The expression of for above reaction follows:

As, , the reaction will be favored on the product side.

Hence, the equilibrium mixture contains primarily products.