ورقة عمل الكيمياء لامتحانات القبول في التمريض مع الإجابات

ماذا يسمى التحول من الحالة السائلة إلى الغازية؟

1. Aالتكاثف
2. Bالتبخر
3. Cالانصهار
4. Dالتجمد

Elements in the same period of the periodic table have the same number of what?

1. AOccupied electron shells
2. BNeutrons
3. CProtons
4. DValence electrons

Charles's law describes the relationship between which two properties of a gas, at constant pressure?

1. ADensity and mass
2. BPressure and volume
3. CPressure and number of moles
4. DVolume and temperature

أي عبارة تصف الحمض القوي؟

1. Aرقمه الهيدروجيني أعلى من 7
2. Bيكون دائمًا عالي التركيز
3. Cيطلق أيونات الهيدروجين جزئيًا فقط
4. Dيتأين تمامًا في الماء

ما شحنة أيون الكلوريد؟

1. A−1
2. B+1
3. C+7
4. D−2

What is the molar mass of sulfuric acid, H₂SO₄ (H = 1, S = 32, O = 16 g/mol)?

1. A50 g/mol
2. B98 g/mol
3. C96 g/mol
4. D49 g/mol

Many ethene (C₂H₄) molecules join together to form poly(ethene), a plastic. What type of reaction is this?

1. ACombustion, in which ethene reacts with oxygen
2. BCondensation polymerisation, in which a water molecule is released at each new link
3. CAddition polymerisation, in which the C=C double bonds open up to link the monomers
4. DHydrolysis, in which water breaks each monomer apart

Why does a burn from steam at 100 °C usually cause more damage than one from liquid water at 100 °C?

1. ASteam releases a large amount of extra energy as it condenses on the skin
2. BSteam particles are hotter than water particles at the same reading
3. CLiquid water cannot pass any of its heat to the skin
4. DSteam carries dissolved acid that damages the skin