Na2O2与足量的NaHCO3混合后,在密闭容器中充分加热,排除气体后冷却

Na2O2与足量的NaHCO3混合后,在密闭容器中充分加热,排除气体后冷却,残留的固体是

   A、NaOH、Na2CO                  B、Na2CO3

   C、NaOH                            D、NaOH、Na2CO3、Na2O2

 

答案

B

解析:

 

相关题目

在边长为1的正三角形ABC中, 设则 =__________________.
在边长为1的正三角形ABC中, 设则 =__________________.
对下列标点使用错误的解析不当的一项是 A.“这是国家财产
对下列标点使用错误的解析不当的一项是 A.“这是国家财产,不能随便动j”王师傅看不惯这几个人的作派,严肃地说:“就是拿走这里一根铁丝,也
已知用不同的工具测量某物体的长度时,有下列不同的结果
已知用不同的工具测量某物体的长度时,有下列不同的结果: A.2.4 cm                                   B.2.37 cmC.2.372 cm           
Ashok Gadgil has spent the past three decades helping people in need—and he h
Ashok Gadgil has spent the past three decades helping people in need—and he has no plans to stop .On May 2, Gadgil won the$100.000 Lemelson-MIT Award for Global Innovation. Each year,the honor
如图所示为一个透明介质制成的半径为R的球,透明介质的折
如图所示为一个透明介质制成的半径为R的球,透明介质的折射率为n,球心为O.透明球内有一点光源S,S距球心O的距离为R/n.试证明:光源S发出的光射
35.Notice for the moment was ____________of the arguments about Korea’s laun
35.Notice for the moment was ____________of the arguments about Korea’s launching their man-made satellite. Two weeks saw no agreements       in UN.        A.paid; appearing    
(08年南充市适应性考试三理)  直线(m, n是正实数)被圆
(08年南充市适应性考试三理)  直线(m, n是正实数)被圆截得的弦长为4,则 的最小值是       A.2        B.4        C.        D.
 ________ with this fiercely competitive society, _______ English well and you
 ________ with this fiercely competitive society, _______ English well and you’ll succeed.  A. Faced; master   B. Faced; mastering    C. Having faced; master   D. To face; mastering