Question

Ca^2- + CO3^2- =CaCO3

Answer 1

CaCl2 + Na2CO3 = CaCO3 + 2NaCl

Ca^(2+) + 2Cl^(-) + 2Na^(+) + CO3^(2-) = CaCO3 + 2Na^(+) + 2Cl^(-)

Ca^(2+) + CO3(2-) = CaCO3

Answer 2

The chemical equation you provided represents the reaction between calcium ions (Ca^2-) and carbonate ions (CO3^2-) to form calcium carbonate (CaCO3). This reaction is a precipitation reaction, where a solid compound (calcium carbonate) is formed from the combination of two aqueous ions.

The balanced chemical equation for this reaction is:

Ca^2- + CO3^2- → CaCO3

It's important to note that in a balanced chemical equation, the number of each type of atom on both sides of the equation must be equal. However, the equation you provided is already balanced.