정답이 있는 간호학 입학 시험 대비 화학 학습지

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

1. APressure and temperature
2. BPressure and volume
3. CMass and volume
4. DVolume and temperature

물의 화학식은 무엇인가요?

1. AHO₂
2. BOH
3. CH₂O₂
4. DH₂O

Which three elements make up carbohydrates?

1. ACarbon, nitrogen and sulfur
2. BCarbon, hydrogen and nitrogen
3. CCarbon, hydrogen and oxygen
4. DHydrogen, nitrogen and phosphorus

When a nucleus emits an alpha particle, how do its mass number and atomic number change?

1. AMass number falls by 2 and atomic number falls by 4
2. BMass number stays the same and atomic number rises by 1
3. CMass number falls by 4 and atomic number falls by 2
4. DNeither changes

Which equation shows a combustion reaction?

1. AZn + CuSO₄ → ZnSO₄ + Cu
2. BC₂H₅OH + 3O₂ → 2CO₂ + 3H₂O
3. CNaOH + HCl → NaCl + H₂O
4. DCaCO₃ → CaO + CO₂

온도가 일정할 때 기체의 부피를 절반으로 줄였습니다. 압력은 어떻게 되나요?

1. A4분의 1이 된다
2. B두 배가 된다
3. C그대로이다
4. D절반이 된다

CO₂ in blood forms carbonic acid: CO₂ + H₂O ⇌ H₂CO₃ ⇌ H⁺ + HCO₃⁻. An anxious patient hyperventilates and breathes off extra CO₂. What happens to blood pH?

1. AIt falls, because less CO₂ means more H⁺ ions
2. BIt stays exactly 7.40, because CO₂ does not affect pH
3. CIt rises, because less CO₂ means fewer H⁺ ions
4. DIt falls, because oxygen is an acid

Which coefficients balance the equation for cellular respiration, __C₆H₁₂O₆ + __O₂ → __CO₂ + __H₂O?

1. A2, 6, 12, 6
2. B1, 6, 6, 6
3. C1, 3, 6, 6
4. D1, 6, 6, 12