Question

Balance the equation $KOH + {H_2}S{O_4} \to {K_2}S{O_4} + {H_2}O$

Answer 1

Hint: A chemical equation is a symbol for a chemical reaction in which the reactants and products are represented by their chemical formulae. The part of the chemical equation to the left of the ‘$ \to $' sign is the reactant side, while the part to the right of the arrow symbol is the product side.

Complete answer:
Given chemical equation is:
$KOH + {H_2}S{O_4} \to {K_2}S{O_4} + {H_2}O$
Balanced equation is:
$2KOH + {H_2}S{O_4} \to {K_2}S{O_4} + 2{H_2}O$
In the above reaction, potassium hydroxide reacts with sulphuric acid to give potassium sulphate and water.
The reactants are potassium hydroxide and sulphuric acid while the products are potassium sulphate and water.
This is a double displacement reaction.
Double displacement reactions are defined as reactions in which two compounds react by exchanging ions to generate two new molecules. Positive ions exchange negative ion partners during double replacement processes. Between ionic chemicals dissolved in water, many double displacement processes take place. The general equation can be used to model a double replacement reaction.
$AB + CD \to AD + BC$

Additional Information:
Neutralization and precipitation reactions are two types of double displacement reactions. Applications of double displacement reactions:1) Acid indigestion 2) Extraction of metal 3) Flame photometry. When two aqueous ionic compounds react to form a new ionic compound that is not soluble in water, it is called a precipitation reaction. Between an acid and a base, neutralisation reactions are a type of double displacement reaction.

Note:
The reactants and products of a double replacement reaction are usually ionic compounds, but they can also be acids or bases. The solvent for a double replacement reaction is normally water, and the reactants and products are usually ionic compounds, but they can also be acids or bases.