The equilibrium constant, Kc, for the following reaction is 40.0 at 290 K. 2CH2Cl2(g) CH4(g) CCl4(g) When a sufficiently large sample of CH2Cl2(g) is introduced into an evacuated vessel at 290 K, the equilibrium concentration of CCl4(g) is found to be 0.210 M. Calculate the concentration of CH2Cl2 in the equilibrium mixture.

Match the following items. 1. high-intensity bundle of energy being emitted from some decaying nuclei gamma ray 2. particle radiating from the nucleus of some atoms beta particle 3. negative particle identical to an electron but radiating from a decaying nucleus alpha particle

Which best explains why an iceberg floats?

What are the first two quantum numbers for the electrons located in subshell 4d? what are the first three quantum numbers for the electrons located in subshell 2s? how many electrons can be held in a sublevel l = 3? how many electrons can be held in the energy level n = 4? how many electrons in an atom can share the quantum numbers n = 4 and l = 3?