Chemicals substances are made up of one or more molecules that have specific properties and composition. They can be found in nature or produced synthetically, and they play a crucial role in our daily lives. Chemicals are used in a wide range of industries, including pharmaceuticals, agriculture, food and beverages, veterinary, construction, and pest control.

Chemicals can be classified into various categories based on their properties, structure, and uses. Some common categories of chemicals include organic chemicals, inorganic chemicals, acids, bases, salts, polymers, and solvents.

Chemicals can have both positive and negative effects on the environment and human health. Some chemicals are beneficial and essential, such as those used in medicine and agriculture. However, some chemicals can be toxic and harmful, and their improper use or disposal can lead to environmental pollution and health hazards. Therefore, handle chemicals safely and responsibly, following proper procedures and regulations.