Question

What are the products in the following double-displacement reaction?

CaCl2 + Na2CO3 

A. 

CaCO3 + 2NaCl

B. 

Na2 + CaCO3 + Cl2

C. 

CaO3 + 2NaCl + C

D. 

CaO3 + Na2CCl2

E. 

CaO2 + 2NaCl(CO)

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Answer 1

The answer is A: CaCO3 + 2NaCl

Answer 2

The products in the following double displacement reaction is
`CaCO_(3)+2NaCl`

Step-by-step explanation:

Ina double displacement reaction, cations and anions of two ionic species exchange their partners, forming new compounds.

Here (
`Ca^(2+)and Cl^(-)`) and (
`Na^(+)and CO_(3)^(2-)`) are two different ionic pairs. Reaction between these two pairs resulting exchange of ionic species between them. Hence
`CaCO_(3)and NaCl` are formed as products of the given reaction.

`CaCl_(2)+Na_(2)CO_(3)\rightarrow CaCO_(3)+2NaCl`