Answer:
The answer to your question is Chemical change.
Step-by-step explanation:
Process
Chemistry classifies changes in two types: physical and chemical changes.
Physical changes occur when matter changes its physical state. Examples are evaporation, condensation, solidification, etc.
Chemical changes occur when matter reacts with another substance and it changes its original composition, a new molecule is formed.
From the description given we conclude that is is a chemical change.