Chemical reactions and their practical Application

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Chemical reactions and their practical Application :
Chemical reaction and everyday life and their practical applications

When a chemical change a cars a chemical reaction acid to have taken place. N chemical reaction autumns combined with each other forming new substance. The substance which take part in chemical reaction are called reactants. The new substance format is a result of a chemical reaction are called products. Generally, the chemical properties of the reactants in product are different from each other. Example of a chemical reaction is rusting of iron. Roasting acres because the iron (Fe) reacts with oxygen (O²) in the atmosphere. Chemical bonds are formed and broken to finally make iron oxide (Fe²O³) which is rust.
 In physical change only the physical state of matter is changed for example melting of ice. These change or temporary and can be easily reversed the substance written the properties during physical change. On the other hand a chemical change is permanent and it cannot be reverse easily. In a chemical change in new things are format which have chemical properties different from the original substance for example for hydrogen gas (H²) and paver oxygen gas react will violently and the persons of spark to from water. Desh chemical reaction is exothermic and it will release energy.



A. Indication of a chemical reaction:
When a chemical reaction takes place different types of change occurs. One or more of the following observation my indicate that a chemical reaction has taken place. 
. A Change and colour as seen.
.  A solid (precipitate) forms on mixing liquids.
. A change of temperature may occur



B. Some chemical reaction in everyday life:
Different things that are being used by us in our day to day activities are products of chemical reaction.  For example different ; toothpaste, swap, shampoo, washing powder etc. are all result of chemical reaction following are song of this significant example of chemical reaction, which we encounter and everyday life.


1. Photosynthesis
You are familiar family with the term photosynthesis.  it is the process by which green plants manufacture their own food. Water and carbon dioxide act is raw materials and the process. The chlorophyll pigment, present in the leaves, traps energy from sunlight. Chemical reaction take place whereby raw materials are converted into  glucose and oxygen gas.



2. Roasting of iron
You might have seen layer of rust over unpainted iron surface. This layer gradually Lead to disintegration of iron. In rusting process iron combines with oxygen in the oxide (Fe²O³) which is rust. 




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