解答つき看護学校入学試験のための化学ワークシート

According to the kinetic molecular theory, how do gas particles move?

1. AConstantly, randomly and in straight lines between collisions
2. BOnly when heated, and then in neat lines between the walls
3. CSlowly in fixed positions
4. DAlways in a single direction, set by the pull of gravity

What is the half-life of a radioactive isotope?

1. AHalf the number of protons in the nucleus
2. BThe time taken for half of the radioactive atoms in a sample to decay
3. CHalf the time it takes for all the atoms to decay
4. DThe time taken for the mass of a sample to double in size

What does the coefficient 3 in "3H₂O" mean?

1. AEach water molecule has three oxygen atoms
2. BThere are three molecules (or moles) of water
3. CEach molecule of water contains three hydrogen atoms
4. DWater has a charge of 3

2 M の溶液 100 mL を、全体の体積が 400 mL になるまで希釈した。新しい濃度はいくつか。

1. A0.5 M
2. B2 M
3. C8 M
4. D1 M

Why does oxygen move from the alveoli of the lungs into the blood?

1. AOxygen is heavier than carbon dioxide
2. BThe partial pressure of oxygen is higher in the alveoli than in the blood
3. COxygen is pumped actively into the blood
4. DThe partial pressure of oxygen is higher in the blood than in the alveoli

Which assumption is made about an ideal gas?

1. AIts particles are large, closely packed and strongly attracted
2. BIts particles stay still at room temperature
3. CIts particles lose energy in every collision
4. DIts particles have no attraction to each other

Which list puts fluorine, chlorine and bromine in order of increasing electronegativity?

1. AF < Cl < Br
2. BBr < F < Cl
3. CCl < Br < F
4. DBr < Cl < F

可逆反応における触媒について、正しい記述はどれか。

1. A反応が進むにつれて消費される
2. B平衡時の生成物の量を増やす
3. C両方向を同じように速める
4. D正反応だけを速め、逆反応を止める