第六章 化学反应与质量守恒定律

Quiz
•
Science
•
11th Grade
•
Medium
张雁茹Tin, Ru
Used 10+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
某气体在纯氧气中点燃会生成二氧化碳和水,根据该现象可推断该气体内一定含有( )。
碳元素
氢元素
碳、氢元素
碳、氢和氧元素
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
在化学反应中,若反应物中没有气体,生成物有气体产生,则需要在气体的化学式旁边用( )表示,若反应中没有固体,而生成物中有固体,则需要在固体的化学式旁边用( )表示。
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列方程式书写正确的是( )。
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
镁带与稀盐酸反应时会释放能量,让溶液温度上升,这类型法反应为 _____。
放热反应
吸热反应
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
氢氧化钡与氯化铵发生反应后,溶液温度下降,这类似的反应称为_____。
吸热反应
放热反应
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
参与化学反应的各物质的质量总和等于反应后生成物的各物质质量的总和,该规律叫做____。
质量守恒定律
能量守恒定律
动量守恒定律
以上皆非
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
分解反应
化合反应
置换反应
复分解反应
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