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

What is a precipitate?

  1. AAn insoluble solid that forms when two solutions react
  2. BA gas that bubbles out when two solutions are mixed
  3. CA liquid that forms when a solid melts
  4. DA substance that speeds up a reaction
2.简单

由液体变为气体的变化叫什么？

  1. A蒸发（汽化）
  2. B熔化
  3. C凝固
  4. D凝结
3.简单

Which of these is a heterogeneous mixture?

  1. ASalt dissolved in water
  2. BAir
  3. CSugar dissolved in tea
  4. DOil and water
4.中等

What is the formula of the hydroxide ion?

  1. AH₃O⁺
  2. BOH⁺
  3. CO²⁻
  4. DOH⁻
5.中等

How does ionisation energy (the energy needed to remove an outer electron) generally change from left to right across a period?

  1. AIt stays the same
  2. BIt increases
  3. CIt first falls, then rises sharply
  4. DIt decreases
6.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. C15
  4. D7
7.困难

5.85 g of NaCl (molar mass 58.5 g/mol) is dissolved to make 500 mL of solution. What is the molarity?

  1. A0.2 M
  2. B2 M
  3. C0.1 M
  4. D0.05 M
8.困难

氯有两种常见同位素：氯-35（约 75%）和氯-37（约 25%）。它的平均原子质量是多少？

  1. A约 36.5
  2. B恰好 36
  3. C约 35.5
  4. D恰好 35

答案

  1. 1. A · An insoluble solid that forms when two solutions react
  2. 2. A · 蒸发（汽化）
  3. 3. D · Oil and water
  4. 4. D · OH⁻
  5. 5. B · It increases
  6. 6. B · 5
  7. 7. A · 0.2 M
  8. 8. C · 约 35.5

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