Question

write types of chemical reactions and explain any two of them​

Answer 1

Answer:

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.