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

氯化钠(食盐)靠哪种键结合在一起?

  1. A共价键
  2. B氢键
  3. C金属键
  4. D离子键
2.简单

Elements in the same period of the periodic table have the same number of what?

  1. AProtons
  2. BValence electrons
  3. COccupied electron shells
  4. DNeutrons
3.简单

现代元素周期表中,元素是如何排列的?

  1. A按中子数递增
  2. B按原子序数递增
  3. C按发现的日期
  4. D按元素符号的字母顺序
4.中等

A plastic block has a density of 0.8 g/cm³. What happens when it is placed in water (density 1.0 g/cm³)?

  1. AIt floats
  2. BIt dissolves
  3. CIt sinks
  4. DIt stays suspended halfway down
5.中等

How is 0.00045 written in scientific notation?

  1. A4.5 × 10⁴
  2. B4.5 × 10⁻⁵
  3. C4.5 × 10⁻³
  4. D4.5 × 10⁻⁴
6.中等

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

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

Which substance has the lowest boiling point?

  1. AHelium
  2. BSodium chloride
  3. CIron
  4. DWater
8.困难

对于这样小的分子来说,水的沸点为什么异常地高?

  1. A它是离子化合物
  2. B它的分子非常重
  3. C必须破坏其分子之间强的氢键
  4. D沸腾时它的 O–H 键断裂

答案

  1. 1. D · 离子键
  2. 2. C · Occupied electron shells
  3. 3. B · 按原子序数递增
  4. 4. A · It floats
  5. 5. D · 4.5 × 10⁻⁴
  6. 6. C · It raises the boiling point slightly
  7. 7. A · Helium
  8. 8. C · 必须破坏其分子之间强的氢键

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