消毒剂在公共场所进行卫生防疫时发挥着重要的作用。
(1)5%的白醋有杀菌、防霉、消毒的作用。白醋中的溶剂是____。
(2)生石灰与水反应后生成一种具有消毒能力的物质，该物质的化学式是____。
(3)双氧水是一种绿色消毒剂，其特点是消毒后无残毒。若向双氧水中加入少量二氧化锰同体，反应的化学方程式是_________________________。
(4)公共场所常用“84”消毒液（NaClO溶液）进行环境杀菌。
①NaClO中Cl元素的化合价是____。
②制造消毒液次氯酸钠(NaClO)溶液的简易装置如下图所示。其原理是氯化钠溶液在通电时生成次氯酸钠和氢气。反应后所得溶液中溶质的所有可能组成是____。
(1)水
(2)Ca(OH)2
(3)2H2O2
2H2O+O2↑
(4)①+1；②NaClO（或NaClO和NaCl）
Michael Jackson’s full name is Michael Joseph Jackson. He is one of pop music’s biggest stars. He was born August 29th, 1958 in Indiana, the USA. He is famous the King of Pop. Michael Jackson is about 50 years old. And he has been a singer for more than 40 years. He started to perform on the stage he was very young. Michael Jackson _ his brother’s pop group in 1964. He quickly became famous. Jackson made his first national TV appearance at the age of 11. Later on, his classical disco Off The Wall 10 million copies. He gave some concerts the tickets always sold out. But there’s happening to him. He once said, “There is a lot of in my past life.” Despite his private life, people all over the world still enjoy his music. his songs are played, people will think of his dynamic(有力量的) performances. Though Jackson died in June, 2009, his fans said that he would be a great forever.
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