解答つき看護学校入学試験のための化学ワークシート

What range does the common pH scale cover?

1. A0 to 100
2. B−7 to +7
3. C0 to 14
4. D1 to 10

金属に典型的な性質はどれか。

1. A砕け散るもろい固体である
2. B室温でほとんどが気体である
3. C熱を伝えにくい
4. D電気をよく通す

水の化学式はどれか。

1. AOH
2. BH₂O
3. CH₂O₂
4. DHO₂

How does an antacid tablet relieve heartburn caused by excess stomach acid?

1. AA weak base in it neutralises some of the acid
2. BIt turns the acid into a gas that is absorbed
3. CIt coats the stomach and stops all acid production
4. DAn acid in it lowers the stomach pH further

Why does water boil at a lower temperature at the top of a high mountain?

1. AThe air is colder, so the water loses heat and boils sooner
2. BThere is less oxygen dissolved in the water up there
3. CThe air pressure is lower, so less vapour pressure is needed to boil
4. DGravity is weaker, so the molecules escape more easily

Rubbing alcohol evaporates faster than water at room temperature. What does this suggest?

1. AIts intermolecular forces are stronger than water's
2. BIts intermolecular forces are weaker than water's
3. CIt has a higher boiling point than water
4. DIts molecules are heavier than water molecules

Methane (CH₄) has four bonding pairs and no lone pairs on carbon. What is its shape?

1. ATetrahedral
2. BSquare planar
3. CBent
4. DTrigonal pyramidal

Why is Dmitri Mendeleev's early periodic table regarded as such a success?

1. AHe arranged the elements by atomic number, which he had discovered
2. BHe left gaps and correctly predicted the properties of elements not yet discovered
3. CHe discovered the noble gases and placed them in group 18
4. DHe proved that the atoms of every element contain electrons