Why is it essential for a calorimetry to be an insulated (closed) system? A. The heat exchange must originate from only the reaction (system).
B. Thermal insulation minimizes energy loses to the atmosphere.
C. A and B
D. None of the Above

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 is the percentage composition of carbon in the compound ch4

What is the lowest number energy level where a d sublevel is found