Cevaplı Hemşirelik giriş sınavları için kimya çalışma kâğıdı

Sıvıdan gaza geçişe ne denir?

1. AYoğuşma
2. BErime
3. CBuharlaşma
4. DDonma

Which quantity is the same for 1 mole of any substance?

1. AThe volume as a liquid
2. BThe number of atoms per molecule
3. CThe mass in grams
4. DThe number of particles

25 °C'de saf suyun pH değeri nedir?

1. A0
2. B7
3. C1
4. D14

Why does ice float on liquid water?

1. AIce is denser than liquid water
2. BIce is less dense than liquid water
3. CIce contains trapped air from the freezer
4. DIce has a higher mass than the same volume of water

During digestion, large molecules are broken down by adding water across their bonds. What is this reaction called?

1. ACombustion
2. BHydrolysis
3. CPolymerisation
4. DCondensation

Kalsiyum (Ca²⁺) ile klor (Cl⁻) arasında hangi bileşik oluşur?

1. ACa₂Cl₃
2. BCaCl₂
3. CCa₂Cl
4. DCaCl

2090 J of heat is added to 50 g of water (specific heat 4,18 J/g·°C). By how much does its temperature rise?

1. A20 °C
2. B41,8 °C
3. C10 °C
4. D5 °C

Pepsin digests protein in the stomach at about pH 2, but it stops working once food moves into the small intestine, where the pH is higher. Why?

1. AThe small intestine is too cold for any enzyme
2. BPepsin only works on fats in the small intestine
3. CPepsin is used up completely in the stomach, just like a reactant
4. DThe change in pH alters the shape of pepsin's active site