Assume that this reaction is at equilibrium: PbCl2(s) <> Pb^2+(aq) + 2Cl^-(aq)
Which of the following statements correctly describes what happens when KCl(s) is added to the solution?
A) The equilibrium shifts right, and [Pb2+] decreases.
B) The equilibrium shifts right, and [Pb2+] increases.
C) The equilibrium shifts left, and [Pb2+] decreases.
D) The equilibrium shifts left, and [Pb2+] increases.

Both josef loschmidt and amedeo avogadro contributed to our understanding of basic molecular numbers, sizes, and reaction ratios. neither scientist discovered “avogadro’s number” in the form we use it today (6.02 x 10 23). still, there’s a controversy over the name. research the contributions from these two scientists and read about how avogadro’s number got its name. briefly state what you think this number should be called, providing key details of each scientist’s contributions to this concept and a solid rationale for your case in naming the number.

The minerals found in bones are deposited by living cells called

Which theory was contradicted by experiments with the photoelectric effect? light spreads out after it passes through a small opening. as soon as light strikes metal, electrons will be ejected. visible light, regardless of color, will cause the ejection of electrons when striking metal. the kinetic energy of ejected electrons depends on the frequency of light that strikes the metal.