Will some one explain the difference between isopropyl, rubbing alchohol, witch hazel, and hydrogen peroxide, do not answer unless you have all the explanations, if you answer without all of them i will report it

Write the chemical symbols for three different atoms or atomic cations with 27 electrons. asap!

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.

Compared with the freezing-point depression of a 0.01 m c6h12o6 solution, the freezing-point depression of a 0.01 m nacl solution is