Look at the diagram of a fuel cell used to power a motorized vehicle. A fuel cell with 2 vertical objects labeled A and B connec
ted by an electrical wire through a circle with a M in it; that circle is labeled A. There is an area between the two vertical objects, and substances flowing to, along, and away from the vertical objects and to the left and right. Which part of the fuel cell does A represent? anode cathode electrolyte motor
<span>The pH is given by the Henderson - Hasselbalch equation:
pH = pKa + log([A-]/[HA]) pH = -log(</span><span>1.3 x 10^-5) + log(0.50/0.40) pH = 4.98 The answer to this question is 4.98. </span>
Energy may exist in different forms such as potential energy when a body is at rest, kinetic energy when the body is in motion, etc.
Energy can neither be created nor destroyed, however, it can be transformed from one form to another. For example, chemical energy may be transformed into mechanical energy or other forms of energy.
