Chemical properties are observed when matter or substance changes to form a new kind of matter or substance.
This is the term used to describe the ability of a substance or matter to react and form new substance. Chemical properties are used during chemical reaction to be able to control the reaction and get a certain product
we can conclude that chemical properties are observes during chemical reaction to ascertain the new substance or matter to be formed
Read more on chemical properties here: https://brainly.com/question/17436856
#SPJ1