Question

Define Chemical reactions. What are the types of Chemicals reactions?​

Answer 1

The 5 primary types of chemical reactions are: Combination reaction. Decomposition reaction.

• Combination Reaction. A reaction in which two or more reactants combine to form a single product is known as a combination reaction.
• Decomposition Reaction.
• Displacement Reaction.
• Double Displacement Reaction.
• Precipitation Reaction.

Answer 2

Chemical reaction definition -

• A chemical reaction is a process that causes the change in the chemical structure of one set of chemical substances to another.
• Chemical reactions cause the change that only involves the positions of electrons in the forming and breaking of chemical bonds between atoms, and it does not cause any change to the nuclei.
• They are often be represented by a chemical equation.
• The science of studying the chemical reaction is called nuclear reaction.

Types of a chemical reaction -

There are mainly five types of chemical reactions.

1. Combination reaction - Those reactions in which two or more elements combine to form a single substance are called combination reactions.
2. Decomposition reaction - Those reactions in which the compound splits to form two or more than two simpler elements are called decomposition reactions.
3. Displacement reaction - Those reactions in which one element of a compound displaces another element in a compound is called displacement reactions.
4. Double displacement reaction - Those reactions in which two compounds react by an exchange of ions to form a new chemical compound is called double displacement reactions.
5. Oxidation and reduction reaction - The reaction which involves the addition of oxygen or removal of hydrogen is called an oxidation reaction. The reaction which involves the removal of oxygen and addition of hydrogen is called reduction reaction.