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

Standard atmospheric pressure (1 atm) is equal to how many millimetres of mercury?

  1. A120 mmHg
  2. B100 mmHg
  3. C760 mmHg
  4. D1000 mmHg
2.简单

25 °C 时纯水的 pH 是多少？

  1. A7
  2. B0
  3. C14
  4. D1
3.简单

What is the molar mass of oxygen gas, O₂ (O = 16 g/mol)?

  1. A8 g/mol
  2. B48 g/mol
  3. C16 g/mol
  4. D32 g/mol
4.中等

How many molecules are in 2 mol of carbon dioxide?

  1. A1.20 × 10²⁴
  2. B6.02 × 10²³
  3. C3.01 × 10²³
  4. D2.00 × 10²³
5.中等

Why does stirring help a solid dissolve faster?

  1. AIt brings fresh solvent into contact with the solid's surface
  2. BIt raises the temperature of the solvent by friction a great deal
  3. CIt turns the solid into a liquid
  4. DIt increases the amount of solute that can dissolve in total
6.中等

Potassium forms K⁺ ions and sulfur forms S²⁻ ions. What is the name and formula of their compound?

  1. APotassium sulfide, KS₂
  2. BPotassium sulfide, K₂S
  3. CPotassium sulfite, KS
  4. DPotassium sulfate, K₂SO₄
7.困难

J.J. Thomson's cathode ray experiments led to which discovery?

  1. AThe nucleus contains uncharged neutrons
  2. BAtoms contain small, negatively charged particles
  3. CAtoms have a dense, positively charged nucleus
  4. DElectrons occupy fixed energy levels
8.困难

Why is Dmitri Mendeleev's early periodic table regarded as such a success?

  1. AHe proved that the atoms of every element contain electrons
  2. BHe discovered the noble gases and placed them in group 18
  3. CHe arranged the elements by atomic number, which he had discovered
  4. DHe left gaps and correctly predicted the properties of elements not yet discovered

答案

  1. 1. C · 760 mmHg
  2. 2. A · 7
  3. 3. D · 32 g/mol
  4. 4. A · 1.20 × 10²⁴
  5. 5. A · It brings fresh solvent into contact with the solid's surface
  6. 6. B · Potassium sulfide, K₂S
  7. 7. B · Atoms contain small, negatively charged particles
  8. 8. D · He left gaps and correctly predicted the properties of elements not yet discovered

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