Based on what you know about breaking and forming bonds, which part of the reaction has a higher bond energy in the balloon video, the reactants or the products formed? (1 point)

Question

Responses

The bond energy in the reactant H2

The bond energy in the reactant H 2

The combined energy of the reactants H2 + O2

The combined energy of the reactants H 2 + O 2

The bond energy in the reactant O2

The bond energy in the reactant O 2

The bond energy of the product H20

Answer 1

In the context of the reaction involving hydrogen gas (H₂) and oxygen gas (O₂) to form water (H₂O), the bond energies can be compared based on the bonds that need to be broken and those that are formed.

When H₂ and O₂ react, the bonds in H₂ and O₂ must be broken first (these are the reactants). The bond energy is the amount of energy required to break these bonds. After that, new bonds are formed in H₂O (the product). The bond energy released when forming these new bonds in water is what typically leads to the energy changes in a reaction.

In this specific reaction:

• The combined energy of the reactants (H₂ and O₂) is lower than the total bond energy of the products (H₂O) because energy is released when forming H₂O bonds.

Therefore, if you are asked which part of the reaction has a higher bond energy, it would be:

The bond energy of the product H₂O.