Question

Complete the given reaction:
${\text{CaC}}{{\text{l}}_2} + {\text{N}}{{\text{a}}_2}{\text{C}}{{\text{O}}_3} \to$
A. ${\text{CaC}}{{\text{O}}_3} + {\text{NaCl}}$
B. ${\text{CaC}}{{\text{O}}_3} + 2{\text{NaCl}}$
C. ${\text{CaO}} + {\text{NaCl}}$
D. none of the above

Answer 1

Hint : A chemical reaction occurs when one or more compounds, known as reactants, are changed into one or more distinct substances, known as products. Chemical elements or compounds are examples of substances. The component atoms of the reactants are rearranged in a chemical reaction, resulting in the formation of various substances as products.

Complete Step By Step Answer:
Double displacement reactions are those in which two chemicals react by exchanging ions to produce two new molecules. Positive ions swap negative ion partners in double replacement processes. Ionic chemicals dissolved in water undergo a lot of double displacement processes. The general equation represents a twofold replacement reaction$AB + CD \to AD + CB$. Atoms from two distinct compounds swap positions in a double displacement process. Two chemicals serve as reactants, while two compounds serve as products.
Ionic or covalent bonds might form between the reacting species. These reactions usually culminate in the precipitation of a single product. The word "double decomposition" appears frequently in ancient literature. When at least one of the compounds does not dissolve in the solvent and the ligand or ion exchange occurs in the solid form of the reactant, the term double decomposition is employed.
Sodium carbonate,$N{a_2}C{O_3}.10{H_2}O$, is an inorganic chemical with the formula $N{a_2}C{O_3}$ and its numerous hydrates (also known as washing soda, soda ash, and soda crystals). All of the forms are water-soluble, colourless, odourless salts that produce mildly alkaline solutions in water. It was traditionally made from the ashes of plants that grew in sodium-rich soils.
Hence the following reaction occurs
${\text{CaC}}{{\text{l}}_2} + {\text{N}}{{\text{a}}_2}{\text{C}}{{\text{O}}_3} \to {\text{CaC}}{{\text{O}}_3} + 2{\text{NaCl}}$
Calcium carbonate and Sodium chloride are formed.

Note :
Calcium chloride is a salt with the chemical formula $CaC{l_2}$. It is an inorganic substance. At ambient temperature, it is a white crystalline solid that is readily soluble in water. It's made by mixing calcium hydroxide with hydrochloric acid to neutralise it.