护理入学考试化学练习卷（附答案）

免费可打印的护理入学考试化学练习卷：8 道题，从简单到考试水平，附答案。可打印或另存为 PDF。

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姓名: ____________________   日期: ____________

1.简单

催化剂有什么作用？

  1. A加快反应而自身不被消耗
  2. B提供反应的反应物
  3. C减慢反应并被消耗
  4. D改变反应的产物
2.简单

What is an acid–base indicator?

  1. AA substance that neutralises every acid
  2. BA substance that changes colour depending on pH
  3. CA device that measures temperature
  4. DA gas given off by acids
3.简单

哪种气体构成了地球空气的大部分？

  1. A氧气
  2. B二氧化碳
  3. C氢气
  4. D氮气
4.中等

A reaction is at equilibrium. More of one reactant is added. According to Le Chatelier's principle, what happens?

  1. ANothing changes
  2. BThe equilibrium shifts toward the reactants
  3. CThe equilibrium shifts toward the products
  4. DThe reaction stops completely
5.中等

根据分子动理论，温度衡量的是什么？

  1. A每个粒子的质量
  2. B粒子的平均动能
  3. C容器的大小
  4. D粒子的总数
6.中等

在反应 2H₂ + O₂ → 2H₂O 中，3 摩尔氧气能生成多少摩尔水？

  1. A2 mol
  2. B1.5 mol
  3. C6 mol
  4. D3 mol
7.困难

What is the percentage by mass of nitrogen in ammonium nitrate, NH₄NO₃ (N = 14, H = 1, O = 16; molar mass 80 g/mol)?

  1. A28%
  2. B17.5%
  3. C60%
  4. D35%
8.困难

At the top of a high mountain, air still contains about 21% oxygen. Why do climbers still get less oxygen with each breath?

  1. ACold air contains no oxygen
  2. BOxygen is heavier, so it all sinks to sea level
  3. CThe total air pressure is lower, so the partial pressure of oxygen is lower
  4. DThe percentage of oxygen in the air falls sharply as you climb higher

答案

  1. 1. A · 加快反应而自身不被消耗
  2. 2. B · A substance that changes colour depending on pH
  3. 3. D · 氮气
  4. 4. C · The equilibrium shifts toward the products
  5. 5. B · 粒子的平均动能
  6. 6. C · 6 mol
  7. 7. D · 35%
  8. 8. C · The total air pressure is lower, so the partial pressure of oxygen is lower

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