A student tests two substances: solid $$\(\mathbf{C}\)$$ and solid $$\(\mathbf{D}\)$$. Tests on solid C Solid $$\(\mathbf{C}\)$$ is ammonium iodide. The student dissolves solid $$\(\mathbf{C}\)$$ in water to form solution $$\(\mathbf{C}\)$$. The student divides solution $$\(\mathbf{C}\)$$ into three approximately equal portions. Complete the expected observations. Identify the three ions in solid D. ................................................................................................................................................ . ................................................................................................................................................ . ..........................................................................................................................................

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