When bonds break and new bonds form, a chemical reaction has taken place.
A new molecule is formed after a chemical reaction.
It takes energy to break a bond. then the atoms rearrange and can form new bonds releasing energy.
The bonds in a molecule can break and atoms can bond with other atoms.
2H2 + O2 + 2H2O 2H-H + O=O = 2H-O-H..not shaped like this !! The bonds in the reactants break and the bonds in the products form. The bonds in the H2 and O2 break and the bonds in the water form.
What type of reaction requires less energy to break the original bonds than the energy released when new bonds form?
Yes.
NO, that's an example of a CHEMICAL change
strong energy
Chemical reactions break the bonds in reactants (compounds) and form new bonds in products (What remains after the reaction).
That process is called a chemical reaction.
Heat provides the activation energy, that is the energy to break the bonds in the starting materials in order that new bonds can form.
In a chemical reaction, the bonds of the reactants are broken. The atoms will rearrange and new bonds will form.