护理入学考试化学练习卷（附答案）

免费可打印的护理入学考试化学练习卷：8 道题，从简单到考试水平，附答案。可打印或另存为 PDF。

新练习卷在线练习，附提示

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姓名: ____________________   日期: ____________

1.简单

How many moles of oxygen atoms are in 1 mole of carbon dioxide, CO₂?

  1. A2
  2. B1
  3. C0.5
  4. D3
2.简单

Which method separates sand from water?

  1. AFiltration
  2. BDistillation
  3. CChromatography
  4. DEvaporation of the sand
3.简单

What is a molecule?

  1. ATwo or more atoms held together by covalent bonds
  2. BThe nucleus of an atom
  3. CA single atom with a positive charge
  4. DA mixture of two different elements
4.中等

将 100 mL 2 M 的溶液稀释至总体积 400 mL。新的浓度是多少？

  1. A0.5 M
  2. B2 M
  3. C8 M
  4. D1 M
5.中等

Why does keeping food in a refrigerator slow down spoilage?

  1. ACold air contains no oxygen
  2. BLower temperatures raise the activation energy of every reaction
  3. CCold temperatures add preservatives to the food
  4. DLower temperatures slow down chemical and microbial reactions
6.中等

How can you get solid salt back from salt water?

  1. AFreeze the solution and lift out the salt
  2. BEvaporate the water
  3. CUse a magnet
  4. DFilter the solution
7.困难

Olive oil is liquid at room temperature, while butter is solid. Which explanation is correct?

  1. AOlive oil molecules are ionic, while butter molecules are covalent
  2. BOlive oil has more C=C double bonds, which kink the chains so they cannot pack closely
  3. COlive oil has no C=C double bonds, so its chains stay straight and pack tightly
  4. DButter contains more water, which freezes at room temperature
8.困难

What is the net ionic equation for the neutralisation of any strong acid by any strong base?

  1. AH⁺ + OH⁻ → H₂O
  2. BH₂ + O₂ → H₂O₂
  3. CH⁺ + Cl⁻ → HCl
  4. DNa⁺ + Cl⁻ → NaCl

答案

  1. 1. A · 2
  2. 2. A · Filtration
  3. 3. A · Two or more atoms held together by covalent bonds
  4. 4. A · 0.5 M
  5. 5. D · Lower temperatures slow down chemical and microbial reactions
  6. 6. B · Evaporate the water
  7. 7. B · Olive oil has more C=C double bonds, which kink the chains so they cannot pack closely
  8. 8. A · H⁺ + OH⁻ → H₂O

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