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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1.简单

Charles's law describes the relationship between which two properties of a gas, at constant pressure?

  1. APressure and volume
  2. BDensity and mass
  3. CVolume and temperature
  4. DPressure and number of moles
2.简单

What is the formula of sulfuric acid?

  1. AHCl
  2. BHNO₃
  3. CH₂SO₄
  4. DH₂SO₃
3.简单

What is the change from a gas directly to a solid, skipping the liquid state, called?

  1. AFreezing
  2. BCondensation
  3. CDeposition
  4. DSublimation
4.中等

缓冲溶液有什么作用？

  1. A把任何酸变成强碱
  2. B使溶液的温度保持恒定
  3. C加入少量酸或碱时抵抗 pH 的变化
  4. D加快中和反应，使 pH 迅速达到恰好 7
5.中等

Nitrogen is in group 15 of the periodic table. How many valence electrons does a nitrogen atom have?

  1. A3
  2. B5
  3. C7
  4. D15
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

A solution contains 250 mg of a substance in every 5 mL. How many grams of the substance are in 100 mL?

  1. A0.5 g
  2. B5 g
  3. C5000 g
  4. D50 g
8.困难

A sealed rigid can holds gas at 2 atm and 27 °C. It is heated to 327 °C. What is the new pressure?

  1. A1 atm
  2. B24 atm
  3. C4 atm
  4. D2.4 atm

答案

  1. 1. C · Volume and temperature
  2. 2. C · H₂SO₄
  3. 3. C · Deposition
  4. 4. C · 加入少量酸或碱时抵抗 pH 的变化
  5. 5. B · 5
  6. 6. B · Potassium sulfide, K₂S
  7. 7. B · 5 g
  8. 8. C · 4 atm

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