Explain Chemical Reaction
Definition of chemical reaction- Chemical reactions are process where a set of chemical compounds converted to the new set of compound.
In this process, the group of substances that involved in the reaction are called reactants and the new compounds that produces are called products. In chemical reactions only exchange of electrons between the components and breaking of chemical bonds take place. It is either endergonic or endergonic reactions. There is no change of nuclei ,means number proton and neutron remain unchanged.
Example: CO2 + H2O -> C6 H12O6
Here carbon dioxide is reacting with water to produce totally different compound called glucose. So, carbon dioxide and water are reactants and glucose is the product. But the properties of the reactants are different from products.
Types of chemical reaction: Generally chemical reactions can be divided into-
1. Combination – Combination is a type of reaction where two or three components are combined together to form new compound. Here new chemical bonds are formed to prepare new substances.
Example of combination reactions are : H2 +Cl2 → 2HCl
Here hydrogen and chlorine are combined together are called hydrogen chloride.
2. Decomposition - Decomposition is an endorsement thermic reaction where single compound is degraded into two or more components. Here energy is required to break down the chemical bonds. It is of three types – thermal decomposition, electrical decomposition, photogenic decomposition.
Examples of decomposition reactions are-
H2O → H2 + O2 . In presence of electrolysis water is decomposed to form hydrogen and oxygen.
3. Single Displacement - Single displacement reactions are type of reaction where one element of a compound is replaced by the other element.
Examples of displacement reactions are-
Cu + ZnCl2 → CuCl2 + Zn
In this reaction copper is an element which replaces zinc. As a result zinc chloride is converted into copper chloride and zinc is separated.
4. Double Displacement - Double displacement is a type of reaction where cations and anions means positive and negative ions are switch their position to produce new compounds.
Examples of displacement reactions are –
AgNO3 + NaCl → AgCl + NaNO3.
In this reaction two compounds are silver nitrate and sodium chloride are made up of positive ions sodium and silver; negative ions are nitrate and chloride. Here positive ion silver is combined with chloride (negative ion) and produces new compound silver nitrate. On the other hand positive ion sodium combined with negative ion nitrate to form sodium nitrate (a new compound).
5. Combustion - Combustion is a chemical reaction where hydrocarbons are oxidized in presence of oxygen to form carbon dioxide and water.
Examples of combustion reactions are-
CH4 + O2 → CO2 + H2O
In this reaction methane undergoes combustion in presence of oxygen to produce carbon dioxide and Water.
6. Redox - It is a chemical reaction where there is transfer of electrons from one species to other takes place.
Examples of redox reactions are-
Zn + Cu++ → Zn++ + Cu.
Reducing agent + oxidizing agent → oxidised + reduced .
You might like these
Explain about Biomolecules | Definition | Macromolecules | Animal Cell
All molecules of the living organisms or chemicals of living organisms which are functional within them are known as biomolecules. It is associated with almost 1000 types of chemical reaction in animal cell. Different types of chemicals present in the cells are called
How to Analyse Chemical Composition? | Quantitative Analysis | X ray
Chemical composition of the substances can be determined according to the two types. One is qualitative and the other is quantitative. Qualitative analysis - This is a type of chemical analysis which is execute to identify the components of the mixture.
Explain Primary and Secondary Metabolites | Definition|Functions|Types
The term metabolites mean the end product which is produced due to metabolism of different products. These are generally referred to as the small
Biomacromolecules | Definition | Polysaccharides|Proteins|Amino Acids
Biomacromolecules are molecules that has molecular weight of more than 1000 Dalton and are found in the acid soluble pool of the chemical analysis of living tissue. These are large sized complex molecules which are of high molecular weight which are commonly formed
Explain about Protein|Definition, Structure, Shape & Source of Protein
Large molecules of organic substances which 8s made up of hydrogen, carbon, oxygen, nitrogen and essential for the cellular structure, metabolism and development are called proteins.
Polysaccharides | Definition, Types and Functions of Polysaccharides
Polysaccharides are huge carbohydrate molecules which is made up of multiple number of monosaccharide with the help of glycosidic bond. They can be branched or unbranched. Examples of polysaccharides glycogen, starch etc.
Nucleic Acid | Definition | Types of Nucleic Acid | DNA | RNA|Diagrams
Definition of nucleic acid- It is a biomolecules present in almost all living beings, able replicate itself and is the major components of chromosome that carries genetic information. This are made up of carbon, hydrogen, oxygen, nitrogen and phosphorus.
Explain about the Structure of Proteins | Definition | Components
Proteins are one of the major components of food , associated with cellular structure and different physiological activities . Components of protein- Proteins are made up of amino acids. Each amino acids contains carbon, hydrogen, oxygen, nitrogen. But sometimes other
Nature of the Bond Linking Monomers in Polymers | Definition | Types
Definition of monomer- this are molecules of low molecular weight which are combined with same type of molecules or different types of molecules to form polymer due to formation of different types of bonds. Examples of monomers are glucose, fructose, nucleotides, amino acids
Dynamic State of Body Constituents | Catabolic Process | Anabolism
Metabolism- This is the sum total of all the chemical reactions occur in living beings in an olderly fashion. Metabolism is made up of anabolism and catabolism. Anabolism- Anabolism is the sum total of those reaction which build up complex substances from simpler ones.
From Explain Chemical Reaction to HOME PAGE
New! Comments
Have your say about what you just read! Leave me a comment in the box below.