Question

types of chemical reactions
explain with examples
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Answer 1

Answer:

>>>> Different Types of Chemical Reactions

The 5 primary types of chemical reactions are:

Combination reaction

Decomposition reaction

Displacement reaction

Double Displacement reaction

Precipitation Reaction

1. Combination Reaction

A reaction in which two or more reactants combine to form a single product is known as a combination reaction.

It takes the form of X + Y → XY

Combination reaction is also known as a synthesis reaction.

Example of combination reaction: 2Na + Cl2 → 2NaCl

2. Decomposition Reaction

A reaction in which a single compound breaks into two or more simpler compounds is known as a decomposition reaction.

It takes the form of XY → X + Y

A decomposition reaction is just the opposite of combination reaction.

Example of a decomposition reaction: CaCO3 → CaO + CO2

The reaction in which a compound decomposes due to heating is known as a thermal decomposition reaction.

3. Displacement Reaction

A chemical reaction in which a more reactive element displaces a less reactive element from its aqueous salt solution.

It takes the form X + YZ → XZ + Y

It is also called a substitution reaction

Example of displacement reaction: Zn + CuSO4 → ZnSO4 + Cu

4. Double Displacement Reaction

A chemical reaction in which ions gets exchanged between two reactants which form a new compound is called a double displacement reaction.

It takes the form of XY + ZA → XZ + YA

It is also called a metathesis reaction

Example of double displacement reaction:

BBaCl2 + Na2SO4 → BaSO4 + 2NaCl

5. Precipitation Reaction

A chemical reaction that involves the formation of an insoluble product (precipitate; solid) is called Precipitation reaction.

The reactants are soluble, but the product formed would be insoluble and separates out as a solid.

The chemical equation by which a chemical change is described is adequate for reaction in solutions, but for reactions of ionic compounds in aqueous solution (water), the typical molecular equation has different representations.

A molecular equation may indicate formulas of reactants and products that are not present and eliminate completely the formulas of the ions that are the real reactants and products.

The main four types of reactions are direct combination, analysis reaction, single displacement, and double displacement. If you're asked the five main types of reactions, it is these four and then either acid-base or redox (depending who you ask

Answer 2

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