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。

新练习卷在线练习，附提示

教师请注意： 可免费打印、复印并在课堂上使用。每份新练习题都有新的数值和独立的答案。欢迎在课程页面添加指向 ExamProblems 的链接。

姓名: ____________________   日期: ____________

1.简单

Which two substances must be present for iron to rust?

  1. AHydrogen and oxygen gas only
  2. BNitrogen and water
  3. COxygen and water
  4. DCarbon dioxide and salt
2.简单

What does the law of conservation of mass state?

  1. AMass is neither created nor destroyed in a chemical reaction
  2. BMass is lost as heat in every reaction
  3. CThe mass of products is always greater than the mass of reactants
  4. DGases have no mass
3.简单

Which of these is a heterogeneous mixture?

  1. ASugar dissolved in tea
  2. BAir
  3. COil and water
  4. DSalt dissolved in water
4.中等

How does electronegativity change going down a group?

  1. AIt doubles with each period
  2. BIt increases
  3. CIt decreases
  4. DIt stays the same
5.中等

下列哪项描述的是强酸？

  1. A它的 pH 高于 7
  2. B它总是浓度很高
  3. C它在水中完全电离
  4. D它只部分释放氢离子
6.中等

What percentage of the mass of water (H₂O, 18 g/mol) is hydrogen (H = 1 g/mol)?

  1. AAbout 5.6%
  2. BAbout 67%
  3. CAbout 11%
  4. DAbout 89%
7.困难

将等体积的 1 M HCl 和 1 M NaOH 混合。所得溶液的 pH 大约是多少？

  1. A14
  2. B7
  3. C1
  4. D3.5
8.困难

Why does a sodium ion (Na⁺) have almost the same mass as a sodium atom?

  1. AThe ion gains a neutron that balances the loss
  2. BThe ion has one fewer proton, which has a tiny mass
  3. CIons and atoms always have exactly the same mass
  4. DThe only difference is one electron, which has a tiny mass

答案

  1. 1. C · Oxygen and water
  2. 2. A · Mass is neither created nor destroyed in a chemical reaction
  3. 3. C · Oil and water
  4. 4. C · It decreases
  5. 5. C · 它在水中完全电离
  6. 6. C · About 11%
  7. 7. B · 7
  8. 8. D · The only difference is one electron, which has a tiny mass

完整分步解答：请在 examproblems.com 上练习本主题。