The study of the composition of substances and the changes they undergo is known as chemistry. Chemistry is a branch of science that explores the properties, structure, and behavior of matter, as well as the changes it undergoes during chemical reactions.

Chemistry is a fundamental science that plays a crucial role in various aspects of our daily lives. It helps us understand the world around us, from the composition of natural substances to the development of new materials and medicines. By studying chemistry, scientists can uncover the building blocks of matter and gain insights into how different substances interact and transform.

Chemists investigate the composition of substances by analyzing their physical and chemical properties. They use a range of techniques and instruments, such as spectroscopy and chromatography, to identify and characterize the elements and compounds present in a sample. By understanding the composition of substances, chemists can determine their reactivity and predict the changes they will undergo under different conditions.

The changes substances undergo can include physical transformations, such as melting, boiling, or dissolving, as well as chemical reactions where new substances are formed. Chemistry allows us to comprehend these changes at a molecular level, revealing the mechanisms behind them. This knowledge is crucial for various applications, such as developing new drugs, designing efficient materials, and finding solutions to environmental challenges.

Furthermore, chemistry provides a foundation for other scientific disciplines, including biology, physics, and environmental science. It helps us understand the chemical processes that occur in living organisms, the behavior of matter under different physical conditions, and the interactions between substances in the environment.

In conclusion, the study of the composition of substances and the changes they undergo is the domain of chemistry. This scientific discipline plays a vital role in our understanding of the natural world and has numerous practical applications. By uncovering the secrets of matter, chemists contribute to the development of new technologies and solutions that benefit society as a whole.

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