The new substance that forms from a chemical change is called a product.

Here's why:

* Chemical Change: A chemical change involves the breaking and forming of new chemical bonds, resulting in a completely different substance with new properties.

* Reactants: The original substances involved in a chemical change are called reactants.

* Products: The new substances formed from a chemical change are called products.

For example, in the reaction between hydrogen and oxygen to form water:

* Reactants: Hydrogen (H₂) and Oxygen (O₂)

* Product: Water (H₂O)