What is reaction? And types of reactions?

 

Types of Chemical Reactions

What is reaction and types of reactions

1. Combination or Synthesis Reaction: In this type of reaction, two or more reactants combine to form a single product. The general equation for a combination reaction is A + B → AB.

2. Decomposition Reaction: This type of reaction involves the breakdown of a compound into two or more simpler substances. The general equation for a decomposition reaction is AB → A + B.

3. Single Displacement or Substitution Reaction: In this type of reaction, one element replaces another element in a compound, resulting in the formation of a new compound and a new element. The general equation for a single displacement reaction is A + BC → AC + B.

4. Double Displacement or Metathesis Reaction: This type of reaction involves the exchange of ions between two compounds, resulting in the formation of two new compounds. The general equation for a double displacement reaction is AB + CD → AD + CB.

5. Acid-Base Reaction: This type of reaction involves the transfer of a proton (H+) from an acid to a base, resulting in the formation of a salt and water. The general equation for an acid-base reaction is HA + BOH → H2O + BA, where HA is an acid, BOH is a base, H2O is water, and BA is a salt.

6. Redox or Oxidation-Reduction Reaction: This type of reaction involves the transfer of electrons from one substance to another. Oxidation is the loss of electrons, while reduction is the gain of electrons. The general equation for a redox reaction is A + B → A+ + B- (oxidation) and C- + D → C + D+ (reduction).

Note that reactions can also be classified based on their energy changes, such as exothermic and endothermic reactions. In an exothermic reaction, heat is released,👷 while in an endothermic reaction, heat is absorbed.

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