护理入学考试化学练习卷（附答案）

What range does the common pH scale cover?

1. A−7 to +7
2. B0 to 100
3. C1 to 10
4. D0 to 14

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

1. AVolume and temperature
2. BPressure and number of moles
3. CDensity and mass
4. DPressure and volume

What are enzymes?

1. ASugars that store energy in the liver
2. BBiological catalysts, usually proteins
3. CMinerals that build bone
4. DFats that form most of the cell membrane

How many grams are in 2.5 kg?

1. A0.0025 g
2. B2500 g
3. C25 g
4. D250 g

How should the volume of water in a graduated cylinder be read?

1. AAt any angle, from the middle of the cylinder
2. BFrom below, at the highest point the water touches the glass
3. CFrom above the cylinder, at the top edge of the curved surface
4. DAt eye level, from the bottom of the curved surface (meniscus)

Which equation shows a combustion reaction?

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

A small amount of acid is spilled on a lab bench. Why is a weak base such as sodium bicarbonate preferred over strong NaOH to neutralise it?

1. ASodium bicarbonate is a strong acid that cancels the spill
2. BExcess sodium bicarbonate is far less harmful than excess NaOH
3. CSodium bicarbonate makes the spilled acid evaporate
4. DNaOH does not react with acids at room temperature

A patient's temperature is 104 °F. What is it in degrees Celsius?

1. A40 °C
2. B72 °C
3. C43 °C
4. D58 °C