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

原子中哪种粒子带正电荷？

  1. A光子
  2. B质子
  3. C中子
  4. D电子
2.简单

What is an empirical formula?

  1. AThe actual number of each atom in one molecule
  2. BThe mass of one mole of a compound
  3. CThe simplest whole-number ratio of atoms in a compound
  4. DA drawing of how the atoms are bonded
3.简单

What is the name of the polyatomic ion NH₄⁺?

  1. AAmmonium
  2. BAmmonia
  3. CNitride
  4. DNitrate
4.中等

How does dissolving salt in water affect the water's boiling point?

  1. AIt lowers the boiling point slightly
  2. BIt raises the boiling point slightly
  3. CIt makes the water boil at room temperature
  4. DIt has no effect on the boiling point
5.中等

质量为 50 g、体积为 20 cm³ 的物体，其密度是多少？

  1. A1000 g/cm³
  2. B70 g/cm³
  3. C2.5 g/cm³
  4. D0.4 g/cm³
6.中等

Why does keeping food in a refrigerator slow down spoilage?

  1. ALower temperatures slow down chemical and microbial reactions
  2. BCold air contains no oxygen
  3. CLower temperatures raise the activation energy of every reaction
  4. DCold temperatures add preservatives to the food
7.困难

Why does a burn from steam at 100 °C usually cause more damage than one from liquid water at 100 °C?

  1. ASteam particles are hotter than water particles at the same reading
  2. BLiquid water cannot pass any of its heat to the skin
  3. CSteam carries dissolved acid that damages the skin
  4. DSteam releases a large amount of extra energy as it condenses on the skin
8.困难

How many grams of NaCl are in 250 mL of 0.9% (w/v) normal saline?

  1. A9 g
  2. B0.9 g
  3. C2.25 g
  4. D22.5 g

答案

  1. 1. B · 质子
  2. 2. C · The simplest whole-number ratio of atoms in a compound
  3. 3. A · Ammonium
  4. 4. B · It raises the boiling point slightly
  5. 5. C · 2.5 g/cm³
  6. 6. A · Lower temperatures slow down chemical and microbial reactions
  7. 7. D · Steam releases a large amount of extra energy as it condenses on the skin
  8. 8. C · 2.25 g

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