Street art is a very popular form of art. It is 1quickly all over the world. You can find it on buildings and street signs from Beijing to Paris.
    Art experts(专家) say that the movement began in New York in the 1960s. Young adults would use paint in special cans to put their words and other images on walls and cars 2 the city. One well-known street artist is Swoon. She3 paper images of people and puts them on walls. Swoon didn’t start her career as a street artist. She studied art, but 4time went on, she got bored with the works she saw in museums or galleries(美术馆). The people in New York enjoy Swoon’s strong and interesting 5. 
    Street artists do their work for a reason. Some of them choose street art because it is 6 to the people. Some artists try to express their opinions in their works. Advertising companies also use street art in their advertisements because it gives the deep impression(印象)and energy.    The New York store Saks Fifth Avenue 7 used a street artist’s design for their shop windows and shopping bags.
    In today's world the Internet has a big 8on street art. Artists can show their pictures to the audience all over the world on the Internet. Many people, 9, say that seeing a picture on the Internet is never as good as seeing it live. Street art lives with the energy and life of a big 10 There it will continue to change and grow.

（1）下列物质能导电的是____ ，属于电解质的是____ ，属于非电解质的是____ ．

①NaCl晶体 ②液态SO₂③液态醋酸 ④汞  ⑤BaSO₄固体 ⑥纯蔗糖（C₁₂H₂₂O₁₁）

⑦氨水      ⑧熔化的KNO₃

（2）按要求写出下列方程式：

①KHSO₄熔融状态电离方程式：____ 

②小苏打与过量石灰乳反应的离子方程式：　____ 

（3）①36g重水（²H₂O）中氧原子的物质的量为：____ ．

②在同温同压下，相同体积的O₂和CH₄，原子数目之比为____ ．

③含有6.02×10²³个氦原子的氦气在标准状况下的体积约为____ ．

（4）同温同压下，某容器充满O₂重96g，若充满CO₂重102g，现充满某气体重104g，则某气体的摩尔质量为____ ．

下列有关蚯蚓的叙述，错误的是（  ）