Chemistry is the study of chemical reactions alongside the properties and various individual reactions on a much larger scale. Namely, chemistry studies how different substances and chemicals react with one another, creating new solutions, atomic structures, and more.
Furthermore, chemistry also focuses on discovering new methods to identify molecules, furthering our knowledge of the subject, and in a larger picture, the world. Physics is concerned with discovery too, but in a different way; more on this below.
Physics, unlike chemistry, is the study of nature and the universe, analyzing individual particles and the world around us. For example, physics is heavily concerned with concepts such as gravity, other fundamental forces, and energy generation. Within physics, there are also seven individual branches, including thermodynamics, statistical mechanics, quantum mechanics, and more. Both subjects contain masses of research, but focus on entirely different concepts.
Chemistry and physics, although somewhat similar, are actually completely different. The main difference here is that physics is concerned with the study of the universe as a whole, while chemistry is the study of chemicals, chemical reactions, and individual molecules.