Asolid brown metal is added to a clear acid solution. a white powder appears and the acid solution becomes cloudy. which type(s) of change have/has occurred

This image is an example of a(n) a) atom. b) compound. c) mixture. d) molecule.

Which description best characterizes the motion of particles in a solid?

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.