The form of energy stored in the nucleus of atoms is _ energy, which falls into the _ energy category.

The form of energy stored in the nucleus of atom is Nuclear Energy which falls into the category of Nonrenewable Energy.

Explanation:

The energy that holds the neutrons and protons found in the nucleus of an atom together is known as Nuclear energy. It is also stored in the nucleus of an atom as potential energy.

If energy source such as fossil fuels takes a very long time to be created or their creation happened long ago and isn't likely to happen again e.g Uranium, it is referred to as Nonrenewable Energy.

well in order to answer this question you have to provide more information < 3

  the   balanced   equation   for   reaction of   ca metal   with   o2 to   produce   cao   is as below

2 ca+ o2→ 2 cao2

  explanation

the reaction is   balanced     since the   number of atoms   in reactant side is   equal to   number of atoms   in   product side.   for   example   they   are 2   atom of   ca in   reactant   side   and   2   atoms of ca   in   the product side.

  the   process   is a   meet the   requirement   of   redox   reaction because :     calcium   is   oxidized   from   oxidation state 0   to 2+   while   oxygen   is reduced from   oxidation   state   0   to 2-