According to the Law of Conservation of energy, the amount of energy before and after a reaction must be the same. Which statement below is true?

Yes this is correct there has to be the same amount of energy in a chemical reaction before during and after the reaction. While the energy states may change from potential energy to heat energy to expended energy there is still the same amount of energy.

Explanation:

for example, no new evidence will demonstrate that the earth does not orbit around the sun (heliocentric theory), or that living things are not made of cells (cell theory), that matter is not composed of atoms, or that the surface of the earth is not divided into solid plates that have moved over geological timescales .