A simple demonstration of how a precipitate is evidence of a chemical reaction taking place is performed by mixing solutions of calcium chloride and sodium carbonate to form the precipitate calcium ...

Sodium carbonate, Na 2 CO 3 ... The resin needs recharging with dishwasher salt (sodium chloride) once it becomes full of calcium ions.

The positive and negative ions attract each other and form the ionic compound sodium chloride. One calcium and two chlorine atoms are near each other. An electron from each atom feels the attraction ...

The atoms in the reactants are: 1 calcium atom, 2 chlorine atoms, 2 sodium atoms, 2 hydrogen atoms, 2 carbon atoms, and 6 oxygen atoms The atoms in the products are: 1 calcium atom, 2 chlorine atoms, ...