Here's why:

* Social science focuses on the study of human society and its interactions, including culture, economics, politics, and psychology.

* Chemistry is a natural science that studies the composition, structure, properties, and reactions of matter.

While there are connections between the two fields (e.g., the impact of chemical discoveries on society), chemistry is fundamentally concerned with the natural world and its laws, while social science is concerned with the human world and its interactions.

Here's a table to illustrate the difference:

| Field | Focus | Examples |

|--------------|------------------------------------------------|------------------------------------------|

| Social science | Human society, interactions, and culture | Sociology, anthropology, economics, history |

| Chemistry | Composition, structure, and reactions of matter | Organic chemistry, inorganic chemistry, biochemistry |