题目

在下列物质间的转化关系中，A是一种正盐，Z通常为液态，D的相对分子质量比C的相对分子质量大16，当X无论是强酸还是强碱时，其转化关系如图所示： ABCDE (1)当X是强酸时，A，B，C，D，E均含有同一元素，请回答(填化学式)： A是         ，Y是         ，Z是         。 (2)当X是强酸时，E是       ；当X是强碱时，E是       。Animals of the city by CNN *Tama the cat, Kinokawa, Japan:Tama is a 15-year-old cat. She is the station master at the Kishi train station in Japan. She works from Monday to Saturday together with Sakura, a lovely dog. Their jobs include saying hello, wearing beautiful clothes and eating.*Fungie the dolphin(海豚), Dingle, Ireland:Dingle is home to Fungie. He lives there for over 30 years. He loves playing in the water. If you go to Dingle, you can go on daily tours(一日游)to see Fungie. *Patrick the wombat(袋熊), Victoria, Australia:Patrick is the oldest and largest wombat in the Ballarat Wildlife Park in Australia. He is 28 years old and weighs about 38 kilograms. Usually, wombats live for about 15 years. Patrick is an orphan(孤儿).Workers in the park give him food. Patrick likes to be around people.1.How many days does the cat work each week?A.Seven days. B.Six days. C.Five days. D.Four days.2.Where does the dolphin come from?A.Japan. B.CNN. C.Ireland. D.Australia.3.What do we know about the wombat?A.He is a station master. B.He has no family members.C.He likes traveling. D.He is 15 years old.4.Which animal is the oldest？A.The dolphin. B.The cat. C.The wombat. D.The dog.