皮皮学，免费搜题
登录
搜题
【单选题】
1-4. 如果BaCO 3 沉淀中尚有0.10 mol BaSO 4 , 在1.0 L 此沉淀的饱和溶液中加入多少 mol Na 2 CO 3 使0.010 mol BaSO 4 完全转化为BaCO 3 ? K sp θ (BaCO 3 ) = 2.6 x 10 -9 . K sp θ (BaSO 4 ) = 1.1 x 10 -10A.
0.50 mol
B.
0.25 mol
C.
0.15 mol
D.
1.00 mol
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【简答题】Many reasons can explain why football is so popular. All around the world, millions play the sport and many more like to watch it. Some would say that the simplicity of the is the main reason for...
【单选题】The inside of the new Globe Theatre _______.
A.
has a larger stage than the original one
B.
has more room for the audience to stand
C.
is just like the original stage
D.
has more seats than the original one你
【多选题】实践是认识的基础，它对认识具有决定作用，主要表现在( )
A.
实践产生了认识的需要
B.
实践是检验真理的唯一标准
C.
实践使得认识得以产生和发展
D.
实践为认识提供了可能
【单选题】听力原文：W: Which of the cars we saw yesterday do you prefer? M: The red one looks very nice, but the black one has more room inside. I have a large family and I like it better. Why does the man prefer th...
A.
It's larger.
B.
It's cheaper.
C.
It's nicer-looking.
D.
It's larger inside.
【多选题】下列各项属于实践对认识的决定作用的有()
A.
实践产生了认识的需要
B.
实践为认识提供了可能
C.
实践是检验认识是否具有真理性的唯一标准
D.
实践使认识得以产生和发展
【单选题】Why do many British people put a dummy fireplace inside their room?
A.
It may bring warmth to the room
B.
It helps create a cosy atmosphere.
C.
It helps save wood and coal.
D.
It makes the room more beautiful.
【简答题】翻译: Front-wheel drive has advantages over rear-wheel drive.Because the engine and transmission components in a FWD vehicle are packaged compactly at the front of the car,the use of interior space is m...
相关题目：
参考解析：
知识点：
题目纠错 0
发布
