Question

types of chemical reaction​

Answer 1

Answer:

The five basic types of chemical reactions are combination, decomposition, single-replacement, double-replacement, and combustion.

Answer 2

Different Types of Chemical Reactions

The 5 primary types of chemical reactions are:

1. Combination reaction
2. Decomposition reaction
3. Displacement reaction
4. Double Displacement reaction
5. Precipitation Reaction

$\huge\mathcal{\fbox{\fbox{\pink{More \: to \: know:-}}}}$

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.
• If the substance in the molecular equation that is actually present as dissociated ions are written in the form of their ions, the result is an ionic equation.

$\huge\mathcal{\fbox{\fbox{\pink{ハンはキミが大好き}}}}$