C6h12o6 + 6 o2 --> 6 co2 + 6 h2o + energy in the reaction listed above, 1 molecule of glucose reacts with 6 molecules of oxygen to form 6 molecules of carbon dioxide, 6 molecules of water, and release energy. the law of conservation of energy is supported by this reaction equation because question 1 options: the same kinds of elements are present both at the start and the end of the reaction there are more molecules at the end of the reaction than at the beginning energy present in the glucose and oxygen that is not needed for the formation of carbon dioxide and water is released to form energy/atp. the number of carbon atoms, hydrogen atoms, and oxygen atoms is the same at the start and end of the reaction

Explanation:

1) Chemical equation (given):

2) Chemical potential energy:

Each compound stores chemical potential energy.  This energy is stored in the chemical bonds.

Due to every substance has its own unique chemical potential energy, when a chemical reaction takes plase, yielding to the change of some substances, some energy is absorbed (when bonds are formed) and some energy is released (when bonds are broken).

3) Conservation of energy:

Then, if the sum of the bond energies of the final products is less than the sum of the bond energies of the reactants, the law of conservation of energy rules that the difference between the total energies of the products and reactants must be released to the surroundings.

That is what is happening in the given reaction:

The term energy in the product side means that energy is conserved because it is being released due to the the glucose and oxygen (reactant side) have more energy stored in their bonds than the energy needed for the formation of carbon dioxide and water, so that excess of energy is released to form energy/ATP.

Summarizing:

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