How many total atoms are in 0.260 g of p2o5?

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.

The number at the end of an isotope’s name is the number.

If 3 moles of a compound use 24 j of energy in a reaction, what is the a hreaction in j/mol?