Plss
bella is reading a science text she sees two short symbols the first symbol is two letters: na and a symbol is a single letter: f

what do these symbols represent?

a: atoms
b: types of energy
c: different systems
d: molecules

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.