The Properties of Chlorine / Mr. Denjiro's Happy Energy! скачать в хорошем качестве

The Properties of Chlorine / Mr. Denjiro's Happy Energy!

DENJIRO: I'll first show you a surprising experiment. Here, we have test tubes sealed with plastic wrap. I will expose them to a laser beam. Here we go. GIRL: It burst! DENJIRO: The test tubes were actually filled with chlorine gas and hydrogen. I'll explain to you what happened. Please look at this apparatus. There's hydrochloric acid inside this syringe. It is connected to a test tube containing bleaching powder, or calcium hypochlorite. Let's push the plunger in to mix the hydrochloric acid and bleaching powder inside the test tube. The reaction of the two substances produces a gas. It is chlorine gas. The gas is collected in a test tube. We'll add hydrogen to it and seal the test tube. Chlorine and hydrogen are actually very reactive. Exposing them to strong light like a laser will cause them to react violently. As a result, the wrap flew off and made a big noise. Let's do another experiment on chlorine. We'll take the chlorine gas we produced and send it into water colored with ink. GIRL: The color got lighter! DENJIRO: The bleaching property of chlorine made the ink lighter. This property is used in our daily lives to bleach things. I hope energy will bring you all happiness. Our magic word is "Happy Energy!"