You are provided with two solids: solid $$\(\mathbf{C}\)$$ and solid $$\(\mathbf{D}\)$$. Do the following tests on the solids, recording all of your observations at each stage. Tests on solid C Divide solid $$\(\mathbf{C}\)$$ into two approximately equal portions in two boiling tubes. Heat the first portion of solid C gently and test any gas given off with damp universal indicator paper. Record your observations. ................................................................................................................................................ . ................................................................................................................................................ . .......................................................................................................................................... To the second portion of solid $$\(\mathbf{C}\)$$, add about $$\(10 \mathrm{~cm}^{3}\)$$ of distilled water. Place a stopper in the boiling tube and shake the boiling tube to dissolve solid $$\(\mathbf{C}\)$$ and form solution $$\(\mathbf{C}\)$$. Divide solution C into three approximately equal portions in two test-tubes and one boiling tube.

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