Question

____ change results in a new substance and cannot be reversed. physical coincidental intangible chemical

Explanation:

A chemical change involves a chemical reaction where the molecular - structure of substances is altered, forming new substances. These changes are usually irreversible. Physical changes only affect the physical state or appearance of a substance without changing its chemical composition and can often be reversed. Coincidental, intangible are not relevant terms for this type of change in the context of science.

Answer:

D. Chemical