A new molecule is formed after a chemical reaction.
Chemical Reaction takes place when bonds break and form new bonds. New products are formed.
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?
NO, that's an example of a CHEMICAL change
Yes.
energy must be addedSolids must be dissolved
When bonds break and new bonds form, a chemical reaction has taken place.
It takes energy to break a bond. then the atoms rearrange and can form new bonds releasing energy.
In a chemical reaction, the bonds between the atoms of the reactants break, and new bonds are formed to make the products. The atoms do not change, they are just rearranged.
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?
NO, that's an example of a CHEMICAL change
Yes.
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.