What type of forces must the polar water molecules break to dissolve ethanol, C2H5OH?
A) metallic
B) covalent bonding
C) hydrogen bonding
D) electrostatic attraction

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.

Explain the relationship between forward and backward reactions in equilibrium, and predict how changing the amount of a reactant (creating a tension) will affect that relationship.

How many moles of al3+ ions are in 1.25 moles of al2o3