将Mg、Cu组成的混合物26．4g，投入到适量的稀硝酸中，固体完全溶解，收集到标准状况下的NO气体8．96L，向反应后的溶液中加入过量的5mol/L的NaOH溶液300mL，金属离子完全沉淀。则形成沉淀的质量是： （ ）
A． |
B． |
C． |
D． |
相关试题
Everybody was touched _____ words after they heard her moving story. 
| A．beyond | B．without | C．of | D．in |
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| A．what | B．this |
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Encourage your children to try new things, but try not to ___ them too hard.
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C．teachers’ energy was saved | D．was saved teachers’ energy |
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