Chemistry is the study of the structure and properties of substances like plastics, metals, fabrics and fuels. It also examines chemical reactions that form new substances through processes occurring in everyday life and industry. Understanding chemistry allows us to better use resources and prevent pollution while sustaining our health.

1. What is chemistry?
chemistry is the study of the structure and properties of substances.
Examples of chemicals: plastics, metals, fabrics, adhesives, paints,
dyes detergents, cosmetics, fuels and medicines. Even the food we eat,
the air we breathe and our bodies are all made up of chemicals.
chemical reactions, are very important in chemistry. Chemical
reactions always involve the formation of one or more new substances.
They occur all around us: fuels burning, foods cooking, plants growing
and cars rusting are all examples of chemical reactions in everyday
life. The main raw materials are coal, crude oil, natural gas, metal ores,
minerals, air and water.
Unfortunately we misuse them sometimes, causing pollution, damaging
our health and wasting resources. Serious problems like these cannot
be solved unless we
all understand our material world. We cannot leave everything to the
expert, and common sense is not always enough. Everyone needs some
chemical sense, and this can only be gained by studying chemistry.
Summary:
Chemistry is the study of the structure and properties of substances.
All substances are chemicals.
Chemical reactions involve the formation of new substances.
The chemical industry changes raw materials into more useful products.
The main raw materials are coal, crude oil, natural gas, metal ores,
minerals, air and water
A knowledge of chemistry is necessary to understand our material world.,