C3H8(g) + 5O2(g) ⇒ 3CO2(g) + 4H2O(L) + 2219.2 kJ Question: Determine the total amount of energy released when 2.50 moles of propane is completely reacted with oxygen.

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.

What was bohr’s contribution to the planetary model

Light waves can move through , but they travel fastest when they move through a(n) .