(2009? Neijiang) as shown in the figure, please observe and think carefully and answer related questions: (1) In the figure 1, there are some colorless liquids in the test tube. If the balloon is plac

(2009? Neijiang) as shown in the figure, please observe and think carefully and answer related questions: (1) In the figure 1, there are some colorless liquids in the test tube. If the balloon is placed, (1) Because sodium carbonate can react with acid to generate carbon dioxide gas, it can inflate the balloon. So the colorless liquid in the test tube may be hydrochloric acid or sulfuric acid, and the balloon expands due to the generation of carbon dioxide gas.

(2) Carbon dioxide can react with sodium hydroxide solution to generate sodium carbonate and water, which can deflate the inflated balloon. So the liquid in the rubber dropper may be sodium hydroxide solution, and the balloon deflates because carbon dioxide participates in the reaction.

So the answer is: (1) The colorless liquid in the test tube may be hydrochloric acid or sulfuric acid, and the reason for balloon inflation is the generation of carbon dioxide gas; (2) The liquid in the rubber-tipped dropper may be sodium hydroxide solution, and the balloon deflates because carbon dioxide participates in the reaction.