工业上用电解饱和食盐水的方法生产氯气和烧碱。
（1）食盐溶于水发生电离，其电离方程式为_______________________。
（2）2004年4月15日，某化工厂发生氯气泄漏事件，工作人员喷射NaOH溶液形成液幕，包围并吸收泄漏的氯气，其反应原理为_________________（用离子方程式表示）。
（3）事件过后，附近居民向记者反映当时晾在外面的衣服褪色了，其原因是_________________（结合化学方程式解释）。
（1）NaCl = Na+ + Cl-
（2）Cl2 + 2OH- ＝ ClO- + Cl- + H2O
（3）Cl2 + H2O ＝ HClO + HCl，次氯酸具有漂白作用，使衣服褪色
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| A man and his wife had a dog to keep their house. When they went out, they always 1 the dog inside the house. One evening they wanted 2 to the cinema, 3 they left the dog in the house and locked the door and their 4 . They went there 5 their car. When the film finished, they came back home. They opened the gate and put the 6 away. But when they came to the 7 door, they found that part of the glass on the door was 8 . The door was unlocked and 9 . A 10 ! They went in and quickly looked in all the rooms to see 11 things the robber had taken. But everything was in the 12 place and nothing at all 13 . The dog 14 in the sitting room on the floor. The lady was 15 the dog. "Why didn't you keep the house?" she said. The dog was 16 to see its owners. It began to wag its tail (摇尾巴) and then it went to a corner of the room and picked up something in its 17 . It went to the lady and 18 the thing at her 19 . When the lady went to pick it up, she gave a scream (尖叫). Can you guess what the dog's present was? It was … a … man's 20 ! | ||||
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