Cevaplı Hemşirelik giriş sınavları için kimya çalışma kâğıdı

What is a single covalent bond?

1. AOne pair of electrons shared between two atoms
2. BTwo pairs of electrons shared between two atoms
3. CThe attraction between two oppositely charged ions
4. DOne electron transferred from one atom to another

How many millilitres are in 1 litre?

1. A10,000
2. B1000
3. C100
4. D10

Which three elements make up carbohydrates?

1. ACarbon, nitrogen and sulfur
2. BHydrogen, nitrogen and phosphorus
3. CCarbon, hydrogen and nitrogen
4. DCarbon, hydrogen and oxygen

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

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

Vinegar contains acetic acid, CH₃COOH. Which functional group makes it an acid?

1. AThe hydroxyl group of an alcohol, –OH
2. BThe methyl group, –CH₃
3. CThe amino group, –NH₂
4. DThe carboxyl group, –COOH

pH'ı 3 olan bir çözelti, pH'ı 5 olan bir çözeltiyle nasıl karşılaştırılır?

1. A2 kat daha fazla hidrojen iyonu vardır
2. BHidrojen iyonu sayısı aynıdır
3. C100 kat daha fazla hidrojen iyonu vardır
4. D100 kat daha az hidrojen iyonu vardır

Why does a sodium ion (Na⁺) have almost the same mass as a sodium atom?

1. AThe only difference is one electron, which has a tiny mass
2. BIons and atoms always have exactly the same mass
3. CThe ion has one fewer proton, which has a tiny mass
4. DThe ion gains a neutron that balances the loss

Aşağıdakilerden hangisi zayıf bir asittir?

1. ASülfürik asit
2. BAsetik asit (sirkede)
3. CNitrik asit
4. DHidroklorik asit