分子、原子、离子等都是构成物质的粒子，下列物质均由分子构成的是_刷题宝

题干

分子、原子、离子等都是构成物质的粒子，下列物质均由分子构成的是（）

A：氯化钠、氯化氢

B：铁、氧气

C：水、氢气

D：氦气、二氧化碳

上一题下一题 0.0难度选择题更新时间:2019-08-13 10:45:27

答案(点此获取答案解析）

C

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某工厂生产的某产品只含C、H、O三种元素，其分子模型如图所示（图中球与球之间的连线代表化学键，如单键、双键等）．下列对该产品的描述不正确的是（　　）

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从方框中选择恰当的句子补全对话。（其中有两个多余）
A: Hi, Mikc!
B: Hello!
A:____
B: Yes, but one thing annoyed me.
A: ____
B: On the bus, I saw a woman eating bananas and threw the banana skins out to the window.
A: ____
B: I told her what she did was not right.
A: You were right. Throwing the litter away will pollute the environment.
B: I Agree with you.
A: ____
B: She didn’t take my words at all.
A: No wonder(难怪) you are so angry.

A．What happened?
B．Why did she do that?
C．What did she do then
D．How did you get here?
E. What did you do then?
F. Did you enjoy your bus trip?
G. Have you had something to eat?

同类题3

如图所示的实验现象说明（　　）

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Hurry ____（up/with）, Mike. The bus is coming.

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有5名新同学，如果每两个人都握手1次，那么他们握手的总次数是 ____次．

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