Question

What is the chemical equation of potassium oxide and sulphuric acid?

Answer 1

A chemical equation is the symbolic representation of a chemical reaction in the form of symbols and formulae, wherein the reactant entities are given on the left-hand side and the product entities on the right-hand side. The coefficients next to the symbols and formulae of entities are the absolute values of the stoichiometric numbers.
Molecular formula of potassium oxide- ${K_2}O$
Molecular formula of sulphuric acid- ${H_{_2}}S{O_4}$

Complete answer:
${K_2}O$is a base and ${H_{_2}}S{O_4}$is an acid. Hence, acid-base neutralization reaction takes place.
${K_2}O\left( {aq} \right) + {H_{_2}}S{O_4}(aq) \to {K_2}S{O_4}(aq) + {H_2}O\left( l \right)$
This is a type of double replacement (double displacement) reaction called a neutralization reaction. An acid and a base react to form an aqueous salt (in this case ${K_2}S{O_4}$) and water.

Note:
To be useful, chemical equations must always be balanced. Balanced chemical equations have the same number and type of each atom on both sides of the equation. The coefficients in a balanced equation must be the simplest whole number ratio. Mass is always conserved in chemical reactions.
The physical states of reactants and products in chemical equations very often are indicated with a parenthetical abbreviation following the formulas. Common abbreviations include ‘s’ for solids,’l’ for liquids, ‘g’ for gases, and ‘aq’ for substances dissolved in water (aqueous solutions).