How many moles of zinc would need to react to produce 5 moles of zinc chloride

The wave shown on the electromagnetic spectrum disturb the medium it passes through a)different frequency. b)the same frequency .

All cells are made of four types of acids, lipids, proteins, and carbohydrates.

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.