Bubbles and fizz are an example of a chemical reaction.
The answer is it tends to be more negative down a group. This is because as you go down the periodic table, the elements have more electron shells in their atoms. This makes the outermost shells less attracted to the nucleus due to their greater distances from the nucleus. Therefore, these shells are less likely to attract electrons (hence lower electron affinity) and are even more likely to lose electrons from their outer electron orbits.
KOH and H2SO4 are electrolyte.
Fats release more energy per gram that proteins. when burned a gram of fat releases 9 calories, while one gram of protein releases about 4 calories. Fats release about twice as much energy per gram than protein. Proteins are essential in numerous body functions and processes so this molecule is not usually metabolized for energy.