Which statement describes mechanical energy? the energy that is stored in chemical bonds the energy that is associated with temperature the sum of the kinetic energy and the potential energy of an object the type of energy that is associated with electromagnetic radiation

 the sum of the kinetic energy and the potential energy of an object

Explanation:

Chemical energy is the energy stored in the bonds of molecules.

Thermal energy is the energy possessed by a body by virtue of its temperature.

Mechanical energy is the energy possessed by a body by virtue of its position and motion and thus is the sum of kinetic energy and potential energy.

Electromagnetic energy is the energy that can be reflected or emitted from objects through electrical or magnetic waves traveling through space.

answer: -

reaction:

na + cl ⇌ nacl

balanced chemical equation:

na + 2cl ⇌ nacl2

sodium + clorine goes to form sodium chloride (table salt).

the product is nacl2.

and the reactants are na and cl.

(note: if you don’t know what ⇌ means, read below: -

⇌(double head arrow) means reversible reaction).