a 50.0 mL volumetric flask filled with aqueous solution of hydrogen peroxide has a total mass of 88.5 g. the mass of the volumetric flask is 16.5 g. what is the density of the aqueous solution of hydrogen peroxide?

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.

Describe the interaction that occurs between two objects with the same electrical charge.

Which common material is an example of a polymer? (25 pts) a. steel b. plastic c. petroleum d. rubbing alcohol