Question

What are the products in the following double-displacement reaction? CaCl2 + Na2CO3

Answer 1

CaCl2 + Na2CO3 ---> CaCO3 + 2NaCl

Answer 2

Answer : The products form in the given reaction are, calcium carbonate,
`(CaCO_3)` and sodium chloride,
`(NaCl)`

Explanation :

Double-displacement reaction : It is a reaction in which an aqueous ionic compounds exchange their ions (a positive cation and a negative anion) to form a new compounds.

In general,

`XY+AB\rightarrow XB+AY`

In this, X and A are the cations and Y and B are the anions.

The given balanced reaction is,

`CaCl_2(aq)+Na_2CO_3(aq)\rightarrow CaCO_3(s)+2NaCl(aq)`

In the given reaction, calcium chloride exchange their ions with sodium carbonate to produce calcium carbonate as a precipitate and sodium chloride in aqueous form.

Hence, the products form in the given reaction are, calcium carbonate,
`(CaCO_3)` and sodium chloride,
`(NaCl)`