What is (1)displacement (2)double displacement (3)redox reaction give two example of each and write their balance chemical formula.
Answers
A composition reaction (sometimes also called a combination reaction or a synthesis reaction) produces a single substance from multiple reactants. A single substance as a product is the key characteristic of the composition reaction. There may be a coefficient other than one for the substance, but if the reaction has only a single substance as a product, it can be called a composition reaction. In the reaction.
A decomposition reaction starts from a single substance and produces more than one substance; that is, it decomposes. One substance as a reactant and more than one substance as the products is the key characteristic of a decomposition reaction. For example, in the decomposition of sodium hydrogen carbonate (also known as sodium bicarbonate)
Answer:
Displacement reaction: The reaction in which a more reactive element displaces the lesser reactive metal from its salt solution.
Ex. - CuSO4 + Fe - - - > FeSO4 + Cu
FeSO4 + Zn - - - > ZnSO4 + Fe
Double displacement reaction: The reactions in which two compounds react by exchanging of ions to form new compounds.
Ex. - AgNO3 + NaCl - - - > AgCl + NaNO3
BaCl2 +CuSO4 - - - >BaSO4 + CuCl2
Redox reactions: The reactions in which oxidation numbers of the compounds get changed or simply the reactions in which oxidation and reduction takes place.
Ex. - H2 +F2 - - - > 2HF
Fe2O3 + 3CO - - - > 2Fe + 3CO2