ورقة عمل الكيمياء لامتحانات القبول في التمريض مع الإجابات

Which group contains the alkaline earth metals, such as magnesium and calcium?

1. AGroup 17
2. BGroup 2
3. CGroup 1
4. DGroup 18

ماذا يسمى التحول من الحالة السائلة إلى الغازية؟

1. Aالتبخر
2. Bالتكاثف
3. Cالتجمد
4. Dالانصهار

في التفاعل AB → A + B، أي نوع من التفاعلات يظهر؟

1. Aالتحلل
2. Bالتركيب
3. Cالتعادل
4. Dالإحلال المزدوج

Why can a very high fever disrupt the body's chemical reactions?

1. AHigh temperatures remove the water from blood
2. BHigh temperatures turn enzymes into fats
3. CHigh temperatures can change the shape of enzymes so they stop working
4. DHigh temperatures make every enzyme work faster without any limit

What is the molar mass of sodium chloride, NaCl (Na = 23, Cl = 35,5 g/mol)?

1. A58,5 g/mol
2. B81,5 g/mol
3. C12,5 g/mol
4. D23 g/mol

ما كثافة جسم كتلته 50 g وحجمه 20 cm³؟

1. A0,4 g/cm³
2. B1000 g/cm³
3. C2,5 g/cm³
4. D70 g/cm³

What is a triglyceride made of?

1. AOne glycerol molecule joined to three fatty acids
2. BThree glucose molecules joined together
3. COne fatty acid joined to three glycerol molecules
4. DThree amino acids joined by peptide bonds

Ethene has the structure H₂C=CH₂. How many electrons are shared between the two carbon atoms?

1. A6
2. B4
3. C8
4. D2