Cevaplı Hemşirelik giriş sınavları için kimya çalışma kâğıdı

What colour does blue litmus paper turn in an acid?

1. APurple
2. BGreen
3. CBlue (no change)
4. DRed

What is the SI unit of pressure?

1. ALitre (L)
2. BNewton (N)
3. CPascal (Pa)
4. DJoule (J)

Aşağıdakilerden hangisi fiziksel değişimdir?

1. ADemirin paslanması
2. BEkmeğin kızarana kadar kızartılması
3. CSuyun kaynayıp buhara dönüşmesi
4. DSütün ekşimesi

What are isomers?

1. AMolecules that contain the same number of bonds
2. BAtoms of the same element with different numbers of neutrons
3. CCompounds with the same structure but different molecular formulas
4. DCompounds with the same molecular formula but different structures

What is the shape of a water molecule?

1. AFlat triangle
2. BTetrahedral
3. CLinear
4. DBent

How does dissolving salt in water affect the water's boiling point?

1. AIt lowers the boiling point slightly
2. BIt raises the boiling point slightly
3. CIt makes the water boil at room temperature
4. DIt has no effect on the boiling point

Yağ neden suda çözünmez?

1. AYağ apolar, su kutupludur ve "benzer benzeri çözer"
2. BSu, hiçbir şeyle karışamayacak kadar yoğundur
3. CYağ suyla tepkimeye girerek bir katı oluşturur
4. DYağ molekülleri yüklü iyonlardır

CO₂ in blood forms carbonic acid: CO₂ + H₂O ⇌ H₂CO₃ ⇌ H⁺ + HCO₃⁻. An anxious patient hyperventilates and breathes off extra CO₂. What happens to blood pH?

1. AIt falls, because less CO₂ means more H⁺ ions
2. BIt stays exactly 7,40, because CO₂ does not affect pH
3. CIt rises, because less CO₂ means fewer H⁺ ions
4. DIt falls, because oxygen is an acid