Respuesta :
Ca ionises into Ca^2+. Ca^2+ will be attracted to O^2- ions in the water, since opposite charges attract. (Hydrogen in water forms H^+)
The dissolution of Calcium ion in the solution has been mediated by oxygen, which is the negative pole. Hence, option A is correct.
Calcium chloride has been the compound of positive calcium ions and negative chloride ions.
The dissociation of an ionic compound in the water has been resulted in the release of the constituent ions in the water. The hydrogen and oxygen ions of water bind to the sample ions and are responsible for the solubility.
Dissolution of Calcium Chloride:
The dissolution of calcium chloride has been mediated with the dissociation of Calcium and Chloride ions. The water has been comprised with the parts of hydrogen and oxygen ions.
The opposite charge has been attracted towards each other, while the same charge repel each other. The calcium has been the positive charge ions, and thus has been attracted by the negative charge oxygen ions.
Thus, the dissolution of Calcium ion in the solution has been mediated by oxygen, which is the negative pole. Hence, option A is correct.
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