The answer is 4.
Gases have low densities, because of the increased space between hight-energy particles.
Explanation:
Fusion vs Fission
In fission, energy is gained by splitting apart heavy atoms, for example uranium, into smaller atoms such as iodine, caesium, strontium, xenon and barium, to name just a few. However, fusion is combining light atoms, for example two hydrogen isotopes, deuterium and tritium, to form the heavier helium. Both reactions release energy which, in a power plant, would be used to boil water to drive a steam generator, thus producing electricity.
Answer:
A. a magnet
Explanation:
Iron fillings could be separated from sand using a magnet
It is
<span>b. strong acid vs. weak base.</span>