Question

part b
enter the formula for the compound that forms from calcium and carbonate. express your answer as a chemical formula.
a chemical reaction does not occur for this question.

Explanation:

Step1: Determine the charges

Calcium (\(Ca\)) has a charge of \(Ca^{2 +}\). The carbonate ion (\(CO_{3}\)) has a charge of \(CO_{3}^{2-}\).

Step2: Apply the criss - cross rule

To form a neutral compound, the charges must balance. Since the charges of \(Ca^{2 +}\) and \(CO_{3}^{2-}\) are equal in magnitude (\(2+\) and \(2-\)), the ratio of \(Ca\) to \(CO_{3}\) is \(1:1\).

Answer:

\(CaCO_{3}\)