Chemistry is a branch of science that deals with the composition, properties, bonding, structure, and interactions of matter. Chemistry forms the basis of human existence. Everything around us defines chemistry. Chemistry is not just done in schools or laboratories but chemistry is also defined in our daily lives. From Washing, to eating, drinking of carbonated drinks. Everything we do is chemistry because it involves matter. A person who studies chemistry is called a Chemist.

1. Organic chemistry:
   This deals with the study of carbon and its compounds. It deals primarily with the reactions, properties, structure and compounds of carbon
2. Inorganic chemistry:
   This deals with the study of inorganic elements like metals, oxygen, nitrogen, etc
   It deals with the structure, properties, reactions and compounds of these elements
3. Analytical Chemistry:
   This deals with the study of how matter can be analysed or measured. This branch of chemistry deals with chemical separation, quantitative and qualitative analysis.
4. Physical chemistry:
   This deals with the application of the knowledge of physics to chemistry. Thermodynamics is an example of a study
   in this field.

1. Food: Chemical substances like fertilizers, pesticides, insecticides are used to inprove food production.


2. Clothing: chemicals like polymers play a vital role in the production of synthetic fibres in the textile industry. sulphonic acids, sodium hypochlorite, hydrogen peroxide are also very important dyeing and bleaching agents.


3. Military: Chemists conduct and advise on research having military and/or medical application, such as protection of personnel from chemical, biological, and radiological agents; development, handling, and use of improved petroleum and synthetic fuels and lubricants; and, purification and control of atmosphere, as on nuclear submarines.


4. Transportation: Trains, buses, scooters, cars, aeroplanes and ships are common means of transport. These vehicles completely depend upon the fuel made available through the knowledge of chemistry.


5. Housing: Chemicals are used in virtually every facet of building construction and maintenance, from roof membranes that reflect light and keep roofs cool, to sealants and caulks used to keep basements dry.


6. Medicine: Major contributions to health care have been made by chemistry. The development of new drugs involves chemical analysis and synthesis of new compounds.


7. space science: Chemistry plays an important role in space science as this scientists must analyze the chemical composition of the planets in our solar system. One example of something they analyze would be the chemical makeup of the rocks and atmospheric gasses on the planets Mars
   and Venus. It is called astrochemistry.

Although there are useful applications of chemistry, there are also a few negative impacts of chemistry to the society. These are:

• Pollution: Gases, like hydrogen chloride, benzene or toluene, dioxin, or compounds like asbestos, or elements such as cadmium, mercury, and chromium causes air pollution while chemicals like pesticides, insecticides and crude oil spillage can cause water pollution on exposure to water bodies. Non biodegradable wasted like plastics also cause soil pollution


• Drug abuse: Chemicals like Cocaine, Heroin, marijuana are drugs that are often abused. These drugs have a physiological and psychological negative effects to the body.


• Corrosion: It is basically defined as a natural process that causes the transformation of pure metals into undesirable substances when they react with substances like water or air. Likewise, the rusting of iron involves the formation of iron oxides(reddish brown iron oxide) via the action of atmospheric moisture and oxygen. It is a spontaneous redox reaction.
  4Fe + 3O₂ + 6H₂O -> 4Fe(OH)₃

• Chemical Research Scientist
• Pharmaceutical Researcher
• Environmental Chemist
• Forensic Scientist
• Quality Control Analyst
• Chemical Engineer
• Analytical Chemist
• Materials Scientist
• Food Scientist/Technologist
• Water Quality Specialist
• Chemistry Teacher/Professor
• Cosmetic Chemist
• Polymer Chemist
• Petroleum Chemist
• Pharmaceutical Sales Representative