Question

Which best represents the reaction of calcium and zinc carbonate (ZnCO3) to form calcium carbonate (CaCO3) and zinc? Ca → ZnCO3 + CaCO3 → Zn Ca + ZnCO3 → CaCO3 + Zn CaCO3 + Zn → Ca + ZnCO3 CaCO3 + Zn + Ca → ZnCO3

Answer 1

option 2

Step-by-step explanation:

Answer 2

Answer : The correct option is,
`Ca+ZnCO_3\rightarrow CaCO_3+Zn`

Explanation :

Displacement reaction : It is a chemical reaction in which a most reactive element displaces the least reactive element easily from its compound.

`A+BC\rightarrow AC+B`

In this, A is more reactive element and B is less reactive element.

The given balanced chemical reaction will be,

`Ca+ZnCO_3\rightarrow CaCO_3+Zn`

In this reaction, calcium displace the zinc element easily because calcium is more reactive element than the zinc.