ورقة عمل الكيمياء لامتحانات القبول في التمريض مع الإجابات

في محلول ملحي، ماذا يسمى الملح؟

1. Aالمحفِّز
2. Bالراسب
3. Cالمذاب
4. Dالمذيب

Which mixture is a suspension?

1. ASalt dissolved in water
2. BSugar dissolved in water
3. COxygen dissolved in water
4. DSand stirred into water

ماذا ينتج عن تعادل حمض وقاعدة؟

1. Aحمض أقوى
2. Bفلز وغاز هيدروجين
3. Cملح وماء
4. Dثاني أكسيد الكربون فقط

أي عنصر هو الأعلى سالبية كهربائية؟

1. Aالهيليوم
2. Bالفلور
3. Cالحديد
4. Dالصوديوم

Why does the vapour pressure of a liquid increase as it is heated?

1. AThe attractions between the molecules become stronger
2. BThe molecules become heavier and press harder on the surface
3. CThe liquid's volume decreases and squeezes out vapour
4. DMore molecules have enough energy to escape into the gas phase

Which type of bond holds the two atoms together in a nitrogen molecule, N₂?

1. AAn ionic bond
2. BA double covalent bond
3. CA single covalent bond
4. DA triple covalent bond

وازن __Fe + __O₂ → __Fe₂O₃ بأصغر أعداد صحيحة. ما المعاملات؟

1. A2, 1, 1
2. B4, 3, 4
3. C4, 3, 2
4. D2, 3, 1

J.J. Thomson's cathode ray experiments led to which discovery?

1. AAtoms have a dense, positively charged nucleus
2. BElectrons occupy fixed energy levels
3. CAtoms contain small, negatively charged particles
4. DThe nucleus contains uncharged neutrons