Question

Which statement is correct about the reaction that occurs between calcium chloride and sodium carbonate? It is a single replacement reaction because two new compounds of calcium and sodium are formed. It is a double replacement reaction because calcium chloride and sodium carbonate exchange their non-metallic parts. It is a single replacement reaction because calcium replaces sodium within a compound as sodium is higher than calcium in the activity series. It is a double replacement reaction because the ions of calcium and sodium exchange places in an aqueous solution as calcium is higher than sodium in the activity series.

Answer 1

Answer: It is a double replacement reaction because calcium chloride and sodium carbonate exchange their non-metallic parts.

Explanation:

Double displacement reaction:  It is a type of chemical reaction in which two reactants exchange their ions to form new compound as a product. In this type of reaction product is obtained in the form of a precipitate.

$AB+CD\rightarrow AD+CB$

$CaCl_2+Na_2CO_3\rightarrow CaCO3+2NaCl$

In a given reaction , $CaCL_2$ are reactants $Na_2CO_3$ and form products by exchanging their nonmetallic parts. The products obtained in the reaction are $CaCO_3$ and $NaCl$

Answer 2

Answer: The correct answer to this is it is a double replacement reaction because calcium chloride and sodium carbonate exchange their non-metallic parts.

Explanation:

• Single displacement reaction is a type of chemical reaction in which more reactive metal displaces the less reactive metal from a chemical reaction. equation follows:

$A+BC\rightarrow AC+B$

A is more reactive metal than B.

• Double displacement reaction is a type of chemical reaction in which exchange of ions takes place. Equation follows:

$AB+CD\rightarrow AD+CB$

Reaction between calcium chloride and sodium carbonate follows:

$Cal_2(aq.)+Na_2CO_3(aq.)\rightarrow 2NaCl(aq.)+CaCO_3(s)$

Here, a precipitate of calcium carbonate is formed because in this reaction exchange of anions took place. Chloride ion forms more stable compound with sodium rather than calcium metal. So, this reaction lead to the formation of sodium chloride and calcium carbonate.

Hence, this is a type of double displacement reaction because of the exchange of non-metallic parts in a given reaction.