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

What is an empirical formula?

  1. AThe actual number of each atom in one molecule
  2. BThe mass of one mole of a compound
  3. CThe simplest whole-number ratio of atoms in a compound
  4. DA drawing of how the atoms are bonded
2.简单

下列哪项是金属的典型性质？

  1. A大多数在室温下是气体
  2. B是易碎的脆性固体
  3. C导电性好
  4. D导热性差
3.简单

What is activation energy?

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

将 2 摩尔葡萄糖溶于水，配成 4 升溶液。摩尔浓度是多少？

  1. A0.5 M
  2. B8 M
  3. C2 M
  4. D4 M
5.中等

How many lone (non-bonding) pairs of electrons are on the oxygen atom in a water molecule?

  1. A2
  2. B4
  3. C1
  4. D0
6.中等

Glucose has the molecular formula C₆H₁₂O₆. What is its empirical formula?

  1. AC₂H₄O₂
  2. BCHO
  3. CCH₂O
  4. DC₆H₁₂O₆
7.困难

A catalyst is added to an exothermic reaction. How does the energy diagram change?

  1. AThe products end up at a lower energy, so more heat is released
  2. BThe reactants start at a higher energy
  3. CThe peak is lower, but the energy of reactants and products stays the same
  4. DThe reaction becomes endothermic
8.困难

一个气球内有 300 K 时 2.0 L 的气体。在压强恒定下，加热到 450 K。新的体积是多少？

  1. A2.0 L
  2. B1.3 L
  3. C3.0 L
  4. D4.5 L

答案

  1. 1. C · The simplest whole-number ratio of atoms in a compound
  2. 2. C · 导电性好
  3. 3. D · The minimum energy reacting particles need for a reaction to happen
  4. 4. A · 0.5 M
  5. 5. A · 2
  6. 6. C · CH₂O
  7. 7. C · The peak is lower, but the energy of reactants and products stays the same
  8. 8. C · 3.0 L

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