题目

    Short and shy, Ben Saunders was the last kid in his class picked for any sports team. “Football, tennis Cricket—anything with a round ball, I was useless,” he says now with a laugh. But back then he was the object of jokes in school gym classes in England’s rural Devonshire. It was a mountain bike he received for his 15th birthday that changed him. At first the teen went biking alone in a nearby forest. Then he began to cycle along with a runner friend. Gradually, Saunders set his mind building up his body, increasing his speed, strength and endurance. At age 18, he ran 一项科学研究成果表明，铜锰氧化物(CuMn2O4)能在常温下催化氧化空气中的一氧化碳和甲醛(HCHO)。 （1）向一定物质的量浓度的Cu(NO3)2和Mn(NO3)2溶液中加入Na2CO3溶液，所得沉淀经高温灼烧，可制得CuMn2O4。 ①Mn2＋基态的电子排布式可表示为                                      。 ②NO3－的空间构型                          (用文字描述)。 （2）在铜锰氧化物的催化下，CO被氧化成CO2，HCHO被氧化成CO2和H2O。 ①根据等电子原理，CO分子的结构式为                       。 ②H2O分子中O原子轨道的杂化类型为                       。 （3）向CuSO4溶液中加入过量NaOH溶液可生成[Cu(OH)4]2－。不考虑空间构型，[Cu(OH)4]2－的结构可用示意图表示为                       。