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

How does increasing the concentration of a reactant in solution usually affect the reaction rate?

  1. AThe rate increases
  2. BThe reaction stops
  3. CThe rate stays the same
  4. DThe rate decreases
2.简单

What is activation energy?

  1. AThe energy stored in the products
  2. BThe energy needed to melt a solid
  3. CThe total energy released once the reaction has finished
  4. DThe minimum energy reacting particles need for a reaction to happen
3.简单

In a chemical reaction, what is the limiting reactant?

  1. AThe reactant that runs out first and stops the reaction
  2. BThe catalyst that controls the speed
  3. CThe reactant with the largest mass
  4. DThe reactant that is left over at the end
4.中等

In 2KClO₃ → 2KCl + 3O₂, how many moles of O₂ form from 4 mol of KClO₃?

  1. A8 mol
  2. B4 mol
  3. C6 mol
  4. D3 mol
5.中等

哪组系数能配平方程式 __H₂ + __O₂ → __H₂O？

  1. A2, 1, 2
  2. B2, 2, 2
  3. C1, 2, 1
  4. D1, 1, 1
6.中等

水的摩尔质量是多少（H = 1 g/mol，O = 16 g/mol）？

  1. A18 g/mol
  2. B10 g/mol
  3. C17 g/mol
  4. D32 g/mol
7.困难

在方程式 N₂ + 3H₂ → 2NH₃ 中，1 mol N₂ 与过量氢气反应，可以生成多少克氨（17 g/mol）？

  1. A28 g
  2. B17 g
  3. C34 g
  4. D51 g
8.困难

一个样品含有 3.01 × 10²³ 个水分子。这是多少摩尔？

  1. A0.5 mol
  2. B3.01 mol
  3. C1.81 mol
  4. D2 mol

答案

  1. 1. A · The rate increases
  2. 2. D · The minimum energy reacting particles need for a reaction to happen
  3. 3. A · The reactant that runs out first and stops the reaction
  4. 4. C · 6 mol
  5. 5. A · 2, 1, 2
  6. 6. A · 18 g/mol
  7. 7. C · 34 g
  8. 8. A · 0.5 mol

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