Cevaplı Hemşirelik giriş sınavları için kimya çalışma kâğıdı

What does the octet rule state?

1. AEvery stable atom has exactly 8 protons in its nucleus
2. BEvery stable molecule contains exactly 8 atoms
3. CAtoms tend to gain, lose or share electrons to get 8 outer electrons
4. DAn atom can form a maximum of 8 covalent bonds

Which positive ion is found in the highest concentration inside most body cells?

1. ACalcium (Ca²⁺)
2. BMagnesium (Mg²⁺)
3. CPotassium (K⁺)
4. DSodium (Na⁺)

İzotoplar nedir?

1. AFarklı elementlerin nötron sayıları aynı atomları
2. BAynı elementin nötron sayıları farklı atomları
3. CAynı elementin proton sayıları farklı atomları
4. DElektron kazanmış iyonlar

Glucose has the molecular formula C₆H₁₂O₆. What is its empirical formula?

1. ACH₂O
2. BCHO
3. CC₂H₄O₂
4. DC₆H₁₂O₆

How much heat is needed to raise the temperature of 100 g of water by 10 °C (specific heat of water = 4,18 J/g·°C)?

1. A41,800 J
2. B4180 J
3. C418 J
4. D41,8 J

What is the name of the compound CaCO₃?

1. ACalcium oxide
2. BCalcium carbonate
3. CCarbon calcium trioxide
4. DCalcium carbide

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

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

Haemoglobin binds oxygen reversibly: Hb + O₂ ⇌ HbO₂. How does this equilibrium help deliver oxygen to tissues?

1. AThe equilibrium does not change anywhere in the body
2. BHigh O₂ in tissues shifts it to the left, absorbing oxygen
3. CLow O₂ in tissues shifts it to the left, releasing oxygen
4. DLow O₂ in tissues shifts it to the right, releasing oxygen