ورقة عمل الكيمياء لامتحانات القبول في التمريض مع الإجابات

What causes the pressure of a gas in a container?

1. AGas particles sticking to the walls
2. BGas particles stopping and pushing outward
3. CGas particles colliding with the container walls
4. DThe weight of the container pressing on the gas inside

What is oxidation, in terms of electrons?

1. AGain of electrons
2. BGain of neutrons
3. CLoss of electrons
4. DLoss of protons

What is an unsaturated solution?

1. AA solution that can still dissolve more solute
2. BA solution that holds the maximum possible solute
3. CA solution with undissolved solid at the bottom
4. DA solution with no solute at all

Water climbs up a narrow glass tube. Which property mainly causes this?

1. AEvaporation of water from the tube
2. BAdhesion of water to the glass
3. CWater's high boiling point
4. DLow density of water

ما التوزيع الإلكتروني لذرة الصوديوم (11 إلكترونًا)؟

1. A2, 9
2. B2, 8, 2
3. C2, 8, 1
4. D8, 2, 1

When mercury(II) oxide is heated, it reacts as 2HgO → 2Hg + O₂. What type of reaction is this?

1. ACombustion
2. BDecomposition
3. CSynthesis
4. DSingle replacement

Which substance has the lowest boiling point?

1. ASodium chloride
2. BHelium
3. CWater
4. DIron

تغيّر الرقم الهيدروجيني لمحلول من 6 إلى 4. ماذا حدث لتركيز أيونات الهيدروجين فيه؟

1. Aصار أكبر بمرتين
2. Bصار أصغر بمئة مرة
3. Cصار أصغر بمرتين
4. Dصار أكبر بمئة مرة