Final answer:
The given chemical equation represents a double displacement reaction where CaBr2 reacts with Na2CO3 to form CaCO3 and NaBr.
Step-by-step explanation:
The given chemical equation CaBr2 + Na2CO3 → CaCO3 + 2NaBr represents a double displacement reaction, also known as a precipitation reaction. In this type of reaction, the cations and anions from two compounds exchange partners to form two new compounds.
In this equation, CaBr2 (calcium bromide) reacts with Na2CO3 (sodium carbonate) to produce CaCO3 (calcium carbonate) and 2NaBr (sodium bromide).
The balanced equation for this reaction is 1CaBr2 + 1Na2CO3 → 1CaCO3 + 2NaBr.
The correct balance for the chemical equation is CaBr2 + Na2CO3 → CaCO3 + 2NaBr. Thus, option (a) is the answer you are looking for. The type of reaction represented here is a double displacement reaction, sometimes known as a metathesis reaction. In this type of reaction, the cations and anions of the two reactants switch places forming new products. The Ca2+ ion pairs with the CO32− ion to form calcium carbonate (CaCO3), and the Na+ ion pairs with the Br− ion to form sodium bromide (NaBr).