0.5m氢氧化钠怎么配制
题目<br><img><br>答案解析<br>查看更多优质解析<br>举报<br>1、称量0.5*40=20.0克氢氧化纳固体.<br>2、将称取的氢氧化纳固体放入小烧杯,加少量水溶解.<br>3、待恢复到室温时室温时,将小烧杯内溶液转移到容量瓶(1000毫升),注意要把小烧杯和玻璃棒洗涤2-3次.<br>4、加水到容量瓶至离刻度线1-2厘米处,改用滴管定容.<br>5、摇匀并转移溶液到其他容器.<br>解析看不懂?免费查看同类题视频解析<br>查看解答<br>相似问题
"以下是一篇关于介绍深圳旅游景点的英语作文,可以介绍欢乐谷 锦绣中华,民俗文化村,世界之窗啊等等: Shenzhen is one of China's top tourist destinations, attracting millions of visitors each year. Its pleasant seashore and well-preserved forests have made<br>-----------------------------------------------------------------------------------------------------<br>Shenzhen is one of China's top tourist destinations, attracting millions of visitors each year. Its pleasant seashore and well-preserved forests have made up for its lack of stately mountains and rivers, and earned it the title of ""International Garden City.""<br>Another magnet comes from its theme parks, with a great variety of features ranging from folk culture to a retired aircraft carrier. Distinctive sceneries, fabulous shows and stunning experiences: the parks' charms never seem to fade.<br>And don't forget this is a modern metropolitan, where high-rise buildings and green space intermingle perfectly. It is a financial center, a transportation hub, and home to many first-rate hotels and restaurants. Here you will never fail to find a cuisine that arouses your appetite and curiosity,<br>For tourists, this is a city of convenience, leisure and endless fun.<br>Theme Parks in the Overseas Chinese Town A magnet for tour groups, the Overseas Chinese Town (Hua Qiao Cheng) in Nanshan District features four distinctive theme parks sitting side by side. A monorail commutes around the parks in the area<br>Chinese Folk Culture Villages<br>Right next to Splendid China, the folk culture park dazzles with the histories and mysteries of the country's ethnic groups. Scattering around the 180,000-sqm park are 24 villages built in 1:1 ratio, inhabited by real ethnic people who present their traditional arts, customs, languages and cuisines. Traditional culture performances are held there every day. Like Splendid China, the park is also heavily forested.<br>Happy Valley<br>This is a place for kids and families. Usually packed on weekends by families, the fun park offers more than 100 attractions ranging from the thrilling Space Shot to the lovely cartoon-themed<br>events. It also holds daily performances of various themes.<br>Window of the World<br>Like Splendid China, this 480,000-sqm park features more than 130 miniature replicas of scenic and cultural wonders. The difference is that these are landmarks from all over the world. Here you can find the Golden Gate Bridge and the Niagara Waterfall of the United States, the Kremlin of Russia, Italy's Pisa Tower, Egyptian pyramids, the Taj Mahal of India and an Eiffel Tower built in 1:3 ratio.<br>Although these replicas would probably not attract Western visitors much, the park's daily dance performance and regular carnival-like events are of great fun. Beautifully illuminated at night, it is also an impressive city scene."