At 700 K, the reaction 2SO2(g) + O2(g) ⇆ 2SO3(g) has the equilibrium constant Kc = 4.3 × 10^6 , and the following concentrations are present:
[SO2] = 0.010 M; [SO3] = 10. M; [O2] = 0.010 M.
Which of the following is true based on the above?

a) Qc < Kc, the reaction proceeds from right to left to reach equilibrium
b) Qc < Kc, the reaction proceeds from left to right to reach equilibrium
c) Qc > Kc, the reaction proceeds from right to left to reach equilibrium
d) Qc > Kc, the reaction proceeds from left to right to reach equilibrium
e) Qc = Kc, the reaction is currently at equilibriums

The balanced chemical equation for this lab is: 3cucl2(aq) + 2al(s) 3cu(s) + 2alcl3(aq) if 10.5 g copper chloride react with 12.4 g aluminum, what is the limiting reactant?

Two nitro no2 groups are chemically bonded to a patch of surface. they can't move to another location on the surface, but they can rotate (see sketch at right). it turns out that the amount of rotational kinetic energy each no2 group can have is required to be a multiple of ε, where =ε×1.010−24 j. in other words, each no2 group could have ε of rotational kinetic energy, or 2ε, or 3ε, and so forth — but it cannot have just any old amount of rotational kinetic energy. suppose the total rotational kinetic energy in this system is initially known to be 32ε. then, some heat is removed from the system, and the total rotational kinetic energy falls to 18ε. calculate the change in entropy. round your answer to 3 significant digits, and be sure it has the correct unit symbol.

The picture represents the process that produces most of the energy used by living organisms on earth. which process is represented in the picture? a) the magnetic attraction between two hydrogen nuclei. b) the fusion of hydrogen nuclei to produce a helium nucleus in the core of the sun. c) the fission of hydrogen nuclei to produce a helium nucleus in the core of the sun. d) the chemical reaction between hydrogen nuclei to produce a helium nucleus in earth's atmosphere.