Prepare carbon dioxide. Immediately insert a stopper with a delivery tube. Bubble carbon dioxide through some distilled water in a large test tube. Record solubility and acidity for each of the demonstrations done by the instructor also. Use the records to classify each oxide as acidic or basic.
Acids dissolve in base and turn blue litmus red.
Bases dissolve in acid and turn red litmus blue. On a blank piece of paper, sketch a periodic table giving element symbols and formulas of oxides. On this table, enter the classification for the oxide as acid or base. Make any appropriate generalizations. Test with litmus paper.