Word chemistry specifies the chemical mechanisms and the chemical reactions( between particles, atoms or molecules even in substances) on which chemistry basically consist. Chemicals are in the form of solid, liquid and also in gases with constant compositions, chemical bonds, characteristics and with a chemical name or formulae. Chemistry identify the chemicals reactions of atom and the interaction of them with other atoms to form chemicals.
With a most common and useful example of chemical we can understand easily the phenomena of chemical and chemistry, water H2O a solid example that consist of ratio of 2:1 that is 2 molecule of hydrogen and 1 molecule of oxygen are combined to form a chemicals or substance known as water which we use in our daily life but some them are dangerous for us. The chemical substance are in form of solid, liquid and gases and they can also change their states according to the atmospheric conditions or with the temperature and pressure, these conditions make changes chemicals from one substance to another.
Chemicals have a widest range and also strongly use in industries and in daily life, pharmaceuticals, textiles, mechanical and many other fields have large use of chemicals.
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