Which of the following statements describes an interaction between the atmosphere and the biosphere

Connect the whole numbers on the periodic table to indicate what they represent?

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.

How many moles are contained in 5.6 l of h2 at stp