Question

What typ of reaction is it?

Answer 1

Type of reaction:

1) Combination reaction: the reaction in which two or more combine and form new substance is called combination reaction.

example - 2H2 + O2 --- 2H2O

2) Displacement reaction: The reaction in which high reactive metal displace the less reactive metal is called Displacement reaction.

example - CuSO4 + Fe --- FeSO4 + Cu

3) Redox reaction: the reaction in which one substance is oxide and another is removed is called Redox reaction.

example - Cu + H20 --- CuO + H2

4) Decomposition reaction: the reaction in which breaking down simple compounds into two or more substances is called Decomposition reaction.

example - 2FeSO4 --- Fe2O3 + SO2 + SO3

5) Double Displacement reaction: the reaction in which two reacting compounds exchange their compounds ions to from two substance is called double Displacement reaction.

example - Na2SO4 + BaCl2 --- 2NaCl + BaSO4



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Answer 2

Several general types of chemical reactions can occur based on what happens when going from reactants to products. The more common types of chemical reactions are as follows:

Combination

Decomposition

Single displacement

Double displacement

Combustion

Redox

See also Collision Theory: How Chemical Reactions Occur.

COMBINATION CHEMICAL REACTIONS

In combination reactions, two or more reactants form one product. The reaction of sodium and chlorine to form sodium chloride,



and the burning of coal (carbon) to give carbon dioxide,



are examples of combination reactions.

Depending on conditions or the relative amounts of the reactants, more than one product can be formed in a combination reaction.

DECOMPOSITION CHEMICAL REACTIONS

Decomposition reactions are really the opposite of combination reactions. In decomposition reactions, a single compound breaks down into two or more simpler substances (elements and/or compounds).

The decomposition of water into hydrogen and oxygen gases,



and the decomposition of hydrogen peroxide to form oxygen gas and water,



are examples of decomposition reactions.

SINGLE DISPLACEMENT CHEMICAL REACTIONS

In single displacement reactions, a more active element displaces (kicks out) another less active element from a compound. For example, if you put a piece of zinc metal into a copper(II) sulfate solution, the zinc displaces the copper, as shown in this equation:



The notation (aq) indicates that the compound is dissolved in water — in an aqueous solution. Because zinc replaces copper in this case, it’s said to be more active. If you place a piece of copper in a zinc sulfate solution, nothing will happen.