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- $ Ca,{\\\text{ }}O,{\\\text{ }}HCl,{\\\text{ }}N{H_3}$.
- $ Ca,{\\\text{ }}{O_2},{\\\text{ }}Na,{\\\text{ }}Al$.
- $ HCl,{\\\text{ }}{P_2}{O_5},{\\\text{ }}Na,{\\\text{ }}Al$.
- $ N{H_3},{\\\text{ }}HCl,{\\\text{ }}Na,{\\\text{ }}Al$.