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1.1 1.2 酸和氢气

Authored by wan hawl

Science

9th - 10th Grade

Used 25+ times

1.1 1.2 酸和氢气
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9 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

下列哪项不是化学变化的证据?

蜡烛燃烧生成二氧化碳
二氧化碳师石灰水变浑浊
水加热后变成水蒸气
植物的光合作用产生氧气

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

下列哪项不是研究化学的意义?

金刚石密度很高,其结构是碳原子组成的。
次氯酸具有漂白性,可以制成漂白剂。
酚酞接触酸性物质保持透明无色。
加热过氧化氢能制得氧气。

3.

FILL IN THE BLANK QUESTION

1 min • 1 pt

写出酸的其中一个例子。

4.

FILL IN THE BLANK QUESTION

1 min • 1 pt

酸电离时都会产生什么离子?

5.

FILL IN THE BLANK QUESTION

1 min • 1 pt

石蕊试液本是什么颜色?

6.

FILL IN THE BLANK QUESTION

1 min • 1 pt

石蕊试液遇到盐酸时,石蕊试液会变成什么颜色?

7.

FILL IN THE BLANK QUESTION

1 min • 1 pt

酸与某些金属氧化物反应能产生什么呢?

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