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

At sea level, at what temperature does pure water freeze?

  1. A100 °C (212 °F)
  2. B32 °C (90 °F)
  3. C0 °C (32 °F)
  4. D−32 °C (−26 °F)
2.简单

Which electrons take part in chemical bonding?

  1. AThe electrons closest to the nucleus
  2. BThe valence (outermost) electrons
  3. COnly the electrons in the first shell
  4. DAll electrons take part equally
3.简单

哪些亚原子粒子存在于原子核中？

  1. A只有电子
  2. B质子和电子
  3. C电子和中子
  4. D质子和中子
4.中等

Which type of bond holds the two atoms together in a nitrogen molecule, N₂?

  1. AAn ionic bond
  2. BA triple covalent bond
  3. CA double covalent bond
  4. DA single covalent bond
5.中等

A solution has a pH of 2. What is its hydrogen ion concentration?

  1. A2 mol/L
  2. B1 × 10⁻¹² mol/L
  3. C1 × 10² mol/L
  4. D1 × 10⁻² mol/L
6.中等

Which measurement has three significant figures?

  1. A5.0006
  2. B0.00560
  3. C0.0056
  4. D56
7.困难

Why does drinking seawater make dehydration worse?

  1. ASeawater is hypotonic, so water rushes into cells and makes them burst
  2. BSeawater is hypertonic, so the body loses extra water getting rid of the salt
  3. CSeawater is isotonic, so it cannot be absorbed
  4. DSeawater contains no water molecules the body can use
8.困难

某溶液的氢离子浓度为 1 × 10⁻⁹ mol/L。它的 pH 是多少，是酸性还是碱性？

  1. ApH 5，酸性
  2. BpH 9，酸性
  3. CpH −9，酸性
  4. DpH 9，碱性

答案

  1. 1. C · 0 °C (32 °F)
  2. 2. B · The valence (outermost) electrons
  3. 3. D · 质子和中子
  4. 4. B · A triple covalent bond
  5. 5. D · 1 × 10⁻² mol/L
  6. 6. B · 0.00560
  7. 7. B · Seawater is hypertonic, so the body loses extra water getting rid of the salt
  8. 8. D · pH 9，碱性

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