试题与答案

岩石热解地化录井数据处理采用()A、面积定量法 B、体积定量法 C、质量定量法

题型:单项选择题

题目:

岩石热解地化录井数据处理采用()

A、面积定量法

B、体积定量法

C、质量定量法

答案:

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题型:问答题

X、Y、Z三种可溶性盐,其阳离子分别Ba2+、Cu2+、Ag+中的某一种,阴离子分别是Cl-、SO42-、NO3-中的某一种.现做以下实验:

①将三种盐各取少量,分别溶于盛有5mL蒸馏水的三支试管中,只有X盐溶液呈蓝色.

②分别向三支试管中加入2mL稀盐酸,发现Y盐溶液中产生白色沉淀,Z盐溶液无明显现象.

(1)根据上述事实,推断这四种盐的化学式分别为:

X______ Y______  Z______

(2)若上述三种阳离子Ba2+、Cu2+、Ag+对应的盐都为硝酸盐,将其混合配成溶液,选择合适试剂,将这三种离子逐一沉淀分离.其流程图如图:

部分物质溶解性表

  Ba2+ Cu2+ Ag+
 Cl- 溶 溶 不
 CO 32- 不 不 不
 SO 42- 不 溶 不
 S2- 溶 不 不
①沉淀1的化学式为______.

②写出混合液+A的离子方程式______.

③若C为Na2S,且它与B属于同一类盐,则B试剂的名称是______.______.

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