How do the mass and height of an object affect the gravitational potential
energy?

Explanation:

The bigger the mass and the higher the height of the object above earth’s surface, the bigger the potential energy. The potential energy can be evaluated using the formula below;

P.E. = m*g*h, where

m = mass in kilograms,

g = the acceleration due to gravity (9.8 m / s² at the surface of the earth), and

h = height in meters.

From the formula, it is clear that increasing mass, gravity or/and height will give an increased potential energy

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).