The soul of chemistry is dealing with___________?

D. Composition and properties of matter

Chemistry is a branch of science that deals with the composition, structure, properties, and reactions of matter. The “soul” of chemistry refers to the essence of what makes chemistry so important and interesting. The essence of chemistry is the study of the internal structural changes in matter, its composition, and its properties. This includes understanding the different types of atoms and molecules that make up matter, how they interact with each other, and how they change in response to different conditions, such as heat, pressure, and light. By studying these aspects of matter, chemists can gain insights into the fundamental nature of the world around us, and develop new and useful materials, chemicals, and technologies.