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(11分)请根据图示回答下列问题： 图一                                      图二 (1)写出图一中标号的仪器名称：① ，② ； (2)某同学欲用图一装置制取氧气，制取氧气的化学方程式为 ； (3)某化学小组同学设计了气体制取与性质验证的组合装置(如图二)。打开分液漏斗活塞放出一定量过氧化氢溶液后，关上活塞，A中出现大量气泡，B中白磷燃烧，C中液面下降，稀盐酸逐渐进入D中。请看图回答下列问题： ①小刚想从A中反应后的混合物中分离出MnO 2 固体，其主要操作是 ； ②A中装置中用分液漏斗代替长颈漏斗的优点是 (答一点即可)； ③B中白磷能够在热水里燃烧的原因是 ； ④D中反应的化学方程式为 ； ⑤E中的实验现象是 ； ⑥用F装置收集气体的依据是 。
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参考答案：
举一反三
【单选题】JAVA虚拟机在运行JAVA代码时,首先进行的操作是()
A.
加载代码
B.
检验代码
C.
编译代码
D.
连接代码
查看完整题目与答案
【单选题】The novel ended happily, and the young couple were married ______.
A.
in the final
B.
in the end
C.
to the last
D.
in conclusion
查看完整题目与答案
【简答题】目的:练习借贷记账法下应用。 资料: 1 .福记公司有关账户的余额如下表 所示。 福记公司有关账户的余额 20×1 年 12 月 31 日 单位:元 账户 金额 账户 金额 库存现金 2 000 短期借款 160 000 银行存款 268 000 应付账款 60 000 应收账款 63 000 应付职工薪酬 30000 原材料 50 000 应交税费 30 000 库存商品 70 000 长期借款...
查看完整题目与答案
【单选题】He wished the young couple a life of happiness and __________.
A.
prosperity
B.
prospect
C.
protest
D.
process
查看完整题目与答案
【判断题】支付长期借款的本金应贷记“长期借款”科目。
A.
正确
B.
错误
查看完整题目与答案
【单选题】The young couple had a quarrel last night and neither of them would give in to ______.
A.
the other
B.
another
C.
one
D.
either
查看完整题目与答案
【单选题】Why did the author and her husband decide to call the young couple back to take the car to the mechanic?
A.
Because they felt a little guilty about the transaction.
B.
Because they had legal responsibility for the car.
C.
Because the young couple did not know how to drive the car.
D.
Because the young couple asked them to repair the car.
查看完整题目与答案
【单选题】The young couple chose a secluded place of their picnic.
A.
(an) authentic
B.
sunny
C.
(an) isolated
D.
grassy
查看完整题目与答案
【单选题】Why did the author and her husband decide to call the young couple back to take the car to the mechanic?
A.
Because the young couple did not know how to drive the car.
B.
Because they felt a little guilty about the transaction.
C.
Because they had legal responsibility for the car.
D.
Because the young couple asked them to repair the car.
查看完整题目与答案
【单选题】需加防锈剂的化学消毒剂是（）
A.
过氧化氢
B.
甲醛
C.
碘酊
D.
苯扎溴铵
E.
乙醇
查看完整题目与答案
相关题目：
【单选题】JAVA虚拟机在运行JAVA代码时,首先进行的操作是()
A.
加载代码
B.
检验代码
C.
编译代码
D.
连接代码
查看完整题目与答案
【单选题】The novel ended happily, and the young couple were married ______.
A.
in the final
B.
in the end
C.
to the last
D.
in conclusion
查看完整题目与答案
【简答题】目的:练习借贷记账法下应用。 资料: 1 .福记公司有关账户的余额如下表 所示。 福记公司有关账户的余额 20×1 年 12 月 31 日 单位:元 账户 金额 账户 金额 库存现金 2 000 短期借款 160 000 银行存款 268 000 应付账款 60 000 应收账款 63 000 应付职工薪酬 30000 原材料 50 000 应交税费 30 000 库存商品 70 000 长期借款...
查看完整题目与答案
【单选题】He wished the young couple a life of happiness and __________.
A.
prosperity
B.
prospect
C.
protest
D.
process
查看完整题目与答案
【判断题】支付长期借款的本金应贷记“长期借款”科目。
A.
正确
B.
错误
查看完整题目与答案
【单选题】The young couple had a quarrel last night and neither of them would give in to ______.
A.
the other
B.
another
C.
one
D.
either
查看完整题目与答案
【单选题】Why did the author and her husband decide to call the young couple back to take the car to the mechanic?
A.
Because they felt a little guilty about the transaction.
B.
Because they had legal responsibility for the car.
C.
Because the young couple did not know how to drive the car.
D.
Because the young couple asked them to repair the car.
查看完整题目与答案
【单选题】The young couple chose a secluded place of their picnic.
A.
(an) authentic
B.
sunny
C.
(an) isolated
D.
grassy
查看完整题目与答案
【单选题】Why did the author and her husband decide to call the young couple back to take the car to the mechanic?
A.
Because the young couple did not know how to drive the car.
B.
Because they felt a little guilty about the transaction.
C.
Because they had legal responsibility for the car.
D.
Because the young couple asked them to repair the car.
查看完整题目与答案
【单选题】需加防锈剂的化学消毒剂是（）
A.
过氧化氢
B.
甲醛
C.
碘酊
D.
苯扎溴铵
E.
乙醇
查看完整题目与答案
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