The answer is Carbonic acid
The difference between the two is, well for one
Spectrum: The entire range that the "<em>waves" </em>could be such, as visible light, x-ray's and so on.
Waves: These are different because they aren't telling you or showing the entire spectrum just which they length that they are.
<em>It may confuse you but it makes sense to me (Sorry)</em>
4896
0.85 x 45 x 128 = 4896
Change in energy = specific heat capacity x mass x change in temperature