Cevaplı Hemşirelik giriş sınavları için kimya çalışma kâğıdı

Nötr bir atomun 11 protonu var. Kaç elektronu vardır?

1. A10
2. B12
3. C22
4. D11

Which form of sugar dissolves fastest in a cup of tea?

1. AA sugar cube
2. BGranulated sugar
3. CA large lump of rock sugar
4. DAll forms dissolve at the same rate

Sıvıdan gaza geçişe ne denir?

1. ADonma
2. BYoğuşma
3. CBuharlaşma
4. DErime

Sert, kapalı bir kapta bir gaz ısıtıldığında basıncına ne olur?

1. ASıfıra düşer
2. BAynı kalır
3. CArtar
4. DAzalır

Which equation shows a combustion reaction?

1. AZn + CuSO₄ → ZnSO₄ + Cu
2. BNaOH + HCl → NaCl + H₂O
3. CCaCO₃ → CaO + CO₂
4. DC₂H₅OH + 3O₂ → 2CO₂ + 3H₂O

Potassium forms K⁺ ions and sulfur forms S²⁻ ions. What is the name and formula of their compound?

1. APotassium sulfate, K₂SO₄
2. BPotassium sulfide, K₂S
3. CPotassium sulfide, KS₂
4. DPotassium sulfite, KS

An isotope has a half-life of 8 days. How long does it take for 100 g to decay to 12,5 g?

1. A24 days
2. B64 days
3. C16 days
4. D32 days

Alpha radiation is stopped by skin, yet an alpha source is very dangerous if swallowed or inhaled. Why?

1. AStomach acid makes the alpha source more radioactive
2. BAlpha particles are only produced at body temperature
3. CAlpha particles turn into much more penetrating gamma rays once inside the body
4. DInside the body, alpha particles deposit all their energy in nearby living cells