CHEM QUESTION "What is the pH of a substance with a hydrogen ion concentration...

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.

How many grams of aluminum will there be in 98g of al2o3?

This statement about matter and its behavior is best classified as a