It is valuable to determine an item’s chemical identity because the chemical identity is the sign of how an item is composed. How the substance is changing would be through the elements in groups that has a chemical identity. I know this because when a chemical is alternated from a previous substance can make a change by the addition to the chemical. This means the identity of the chemical that included a previous group of elements, would be in a new form. I know this because in accordance to any chemical identity as a result, it would mean that the beginning product was important information based on what the chemical had contained. As a result, this means that chemical identities are the roots of further on chemical substance identities from the starting point of just an element.