Question

what are the four types of chemical reactions explain them with an example each​

Answer 1

. Combination or Synthesis Reaction

A combination or synthesis reaction is one, where a new product is synthesized by combination of two or three reactants.

Example

Hydrogen + Oxygen = Water

. Decomposition Reaction

Decomposition reaction is one, where one compound decomposes or breaks into two or more different products.

Example

Lead nitrate [Math Processing Error] Lead monoxide + Nitrogen dioxide + Oxygen

Pb(NO3 )2 [Math Processing Error] PbO + NO2 + O2

. Decomposition Reaction

Decomposition reaction is one, where one compound decomposes or breaks into two or more different products.

Example

Lead nitrate [Math Processing Error] Lead monoxide + Nitrogen dioxide + Oxygen

Pb(NO3 )2 [Math Processing Error] PbO + NO2 + O2

Answer 2

HEY MATE!

HERE'S YOUR ANSWER

Types of CHEMICAL REACTIONS :

1)COMBINATION REACTION- In a combination reaction, two or more reactants add up to form a product.

For example:the burning of some elements.....

2H2 (g)+O2 (g)=>2H2O (g)

2)DECOMPOSITION REACTIONS- Here, one substance breaks down into two or more simpler substances.

For example:decomposition of water on electrolysis....

H2O=>2H2+O2

3)DISPLACEMENT REACTIONS - Here, one element displaces another from its compound and takes its place therein.

For example:the displacement of hydrogen from water by a metal....

2K (s)+2H2O (l)=>2KOH (aq)+H2 (g)

4)DOUBLE DISPLACEMENT REACTIONS- Here, the positive radical and the negative radicals of two reactants are exchanged, leading to the precipitation of a product.

For example:the reaction between silver nitrate and sodium chloride....

AgNO3 (aq)+NaCl (aq)=>AgCl (s)+NaNO3 (aq)

HOPE IT HELPS YOU FRIEND

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