能正确表示下列反应的离子方程式是                     

能正确表示下列反应的离子方程式是                                     

A.硫酸铝溶液中加入过量氨水      Al33OH= Al(OH)3

B.碳酸钠溶液中加入澄清石灰水    Ca(OH)2 CO32= CaCO32OH

C.冷的氢氧化钠溶液中通入氯气    Cl22OH= ClOClH2O

D.稀硫酸中加入铁粉              2Fe6H= 2Fe33H2

答案

C

相关题目

(13分)设函数   (I)k为何值时,f(x)在R上是减函数;  
(13分)设函数   (I)k为何值时,f(x)在R上是减函数;   (II)试确定实数k的值,使的极小值为0.
 We tried to find a table for seven, but they were all           .
 We tried to find a table for seven, but they were all           .   A. given away         B. kept away       C. taken up          D. used up
据宁波市统计局公布的第六次人口普查数据,本市常住人口76
据宁波市统计局公布的第六次人口普查数据,本市常住人口760.57万人,其中760.57万人用科学记数法表示为(    )        A.7.6057×105人    B.7.
下列事例中,属于利用声传递能量的是(    )A.用声呐探
下列事例中,属于利用声传递能量的是(    )A.用声呐探测海底深度B.用超声波清洗眼镜C.医生用听诊器为病人检查身体D.听到隆隆的雷声预示着可能
已知两个圆锥,底面重合在一起,其中一个圆锥顶点到底面
已知两个圆锥,底面重合在一起,其中一个圆锥顶点到底面的距离为2cm,另一个圆锥顶点到底面的距离为3cm,则其直观图中这两个顶点之间的距离为( )
An Englishman was showing a foreign visitor around London. “What’s that str
An Englishman was showing a foreign visitor around London. “What’s that strange building?” asked the visitor. “That’s the Tower of London.” “I see. How long did it take to build it?
下列函数中,(       )                       
下列函数中,(       )                              、
词汇运用 56. Put the vegetables into the fridge so that they can r     
词汇运用 56. Put the vegetables into the fridge so that they can r              fresh for 2-3 days. 57. His house was completely d             in the earthquake, which m

最新题目