Intramolecular bonds form between atoms in a molecule. These bonds are very strong and take a lot of energy to break. Breaking these bonds results in the loss of identity of the molecule. For example, if you break the bonds between hydrogen and oxygen atoms in the water molecule, you no longer have water.

What forces are broken during a chemical change?

Reactants and products can be elements or compounds, depending on the reaction taking place. During a chemical reaction, bonds between atoms in the reactants are broken and new bonds are formed in the products.

Do physical changes cause intramolecular bonds to break?

Physical change can involve changes in intramolecular forces (chemical bonds). The strength of the chemical bonds depends only on their type (ionic or covalent). ... Alternatively, they may overgeneralize, such as arguing that diamond has a lower melting point than salt because ionic bonds are stronger than covalent bonds.