Plz hurry i need a student is comparing two solutions. solution a has a ph of 4 and solution b has a ph of 10. which best describes the solutions? a. solution b is more acidic than solution a. b. solution a is more acidic than solution b. c. solution b has more hydrogen ions than solution a. d. solution a has more hydroxide ions than solution b.

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.

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.

Convert the temperature of dry ice, –77 ∞c, into degrees fahrenheit and kelvin.