Chemistry for nursing entrance exams worksheet with answers

Free printable Chemistry for nursing entrance exams worksheet: 8 problems from easy to exam level, with an answer key. Print it or save it as a PDF.

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1.Easy

A food Calorie (written with a capital C) equals which amount of energy?

  1. A1 joule
  2. B1 calorie
  3. C1 kilojoule (1000 J)
  4. D1 kilocalorie
2.Easy

What is a hydrocarbon?

  1. AA carbon atom with a positive charge
  2. BA compound made of only hydrogen and carbon
  3. CAny compound that dissolves in water
  4. DA compound made of hydrogen and oxygen
3.Easy

Which of these is a chemical change?

  1. ASugar dissolving in tea
  2. BGlass breaking
  3. CIce melting
  4. DWood burning
4.Medium

For the gas reaction N₂ + 3H₂ ⇌ 2NH₃, what is the effect of increasing the pressure?

  1. AThe equilibrium shifts to the right, toward NH₃
  2. BThe equilibrium shifts to the left, toward N₂ and H₂
  3. CThe NH₃ breaks down completely
  4. DThere is no effect on the equilibrium
5.Medium

A radioactive isotope has a half-life of 5 days. A sample starts with 80 g. How much is left after 10 days?

  1. A0 g
  2. B40 g
  3. C10 g
  4. D20 g
6.Medium

What is the name of the molecular compound CO?

  1. ACarbon dioxide
  2. BMonocarbon oxide
  3. CCarbon oxide
  4. DCarbon monoxide
7.Hard

How many atoms in total are in 0.5 mol of water, H₂O?

  1. A6.02 × 10²³
  2. B9.03 × 10²³
  3. C3.01 × 10²³
  4. D1.81 × 10²⁴
8.Hard

Each C=O bond in carbon dioxide is polar, yet the CO₂ molecule is nonpolar. Why?

  1. ACarbon and oxygen have the same electronegativity
  2. BThe bonds are ionic, not covalent
  3. CCarbon has lone pairs that cancel the dipoles
  4. DThe molecule is linear, so the two bond dipoles cancel out

Answer key

  1. 1. D · 1 kilocalorie
  2. 2. B · A compound made of only hydrogen and carbon
  3. 3. D · Wood burning
  4. 4. A · The equilibrium shifts to the right, toward NH₃
  5. 5. D · 20 g
  6. 6. D · Carbon monoxide
  7. 7. B · 9.03 × 10²³
  8. 8. D · The molecule is linear, so the two bond dipoles cancel out

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