Question

Write a chemical equation for the event.
Zinc oxide is dissolved in dilute hydrochloric acid.

Answer 1

Hint: We have to know that in the given reaction, the zinc oxide is dissolved in dilute hydrochloric acid. During a chemical reaction, the chemical substance is transformed chemically into other chemical substances. And the species formed during the chemical reaction is known as a product. The reactant converts into products by passing them to a high energy transition state. And the chemical reactions are divided into different types, that is, synthesis, decomposition, addition, single replacement reaction and double replacement reaction.

Complete answer:
We need to remember that when the zinc oxide is reacting with hydrochloric acid, there is a formation of zinc chloride and water. Let’s see the chemical equation,
\[ZnO + 2HCl \to ZnC{l_2} + {H_2}O\]
Here, one mole of zinc oxide is reacting with two moles of hydrochloric acid and form one mole of zinc chloride and one mole of water. And this is a neutralization reaction. In the case of a neutralization reaction, the acid and base are quantitatively reacted with each other. And there does not exist an excess number of hydrogen and hydroxide ions in the solution.

Note:
We need to know that during the chemical reaction, one or more chemicals are transformed into one or more other chemicals by occurring any of the chemical reactions like synthesis, decomposition, single replacement reaction and double replacement reaction. When the zinc oxide is reacting with hydrochloric acid, there is a formation of zinc chloride and water. First we have to analyze the given reactants and write the product accordingly. The conditions may be different for each reaction. And according to the law of conservation of mass, the mass of the reactant must be balanced with the mass of the product.