What is the pOH if [OH-] is 7.8 x 10^6 M

Your friend offers to show you an intrusive igneous rock. which of the following would you expect to see?

The diagram shows the structures of horse and cat forelimbs. what does the diagram suggest about the evolutionary relationship between these two mammals? a. they have homologous structures, indicating a common ancestor. b. they have analogous structures, indicating a common ancestor. c. they have homologous structures, indicating that they do not have a common ancestor. d. they have analogous structures, indicating that they do not have a common ancestor.

What is the equilibrium constant of aa+bb=cc+dd