Chemistry is a branch of physical sciences as it studies about the structure, composition and properties of matter. Matter is filled with several atoms and chemistry explains how the chemical bonding of the individual atoms combine together to form chemical compounds. The general properties of matter is formed due to the interaction of inter molecular forces of various substances and the chemical reaction that takes place as a result of interaction of various substances give rise to new substances.
Natural Sciences like Chemistry, physics, geology and biology are interdisciplinary in nature and it is difficult to study them in isolation. Physical properties of a substance or matter as a result of chemical reaction would create new structure with different set of properties.