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

What is the molar mass of oxygen gas, O₂ (O = 16 g/mol)?

  1. A48 g/mol
  2. B32 g/mol
  3. C8 g/mol
  4. D16 g/mol
2.Easy

Why is water often called the universal solvent?

  1. AIt is the only liquid found on Earth
  2. BIt has no partial charges anywhere in its molecule, so it mixes with everything
  3. CIt dissolves more substances than other common liquids
  4. DIt dissolves every substance completely
3.Easy

What is radioactivity?

  1. AThe glow produced by any hot object
  2. BThe flow of electrons through a metal wire
  3. CThe release of radiation by unstable atomic nuclei
  4. DThe release of heat and light when fuels burn in air
4.Medium

How many lone (non-bonding) pairs of electrons are on the oxygen atom in a water molecule?

  1. A2
  2. B4
  3. C0
  4. D1
5.Medium

What is carbon-14 dating used for?

  1. AEstimating the age of material that was once alive
  2. BFinding the exact age of rocks that are billions of years old
  3. CDetecting carbon monoxide in a room
  4. DMeasuring body temperature
6.Medium

What is the conjugate base of nitric acid, HNO₃?

  1. ANO₂⁻
  2. BH₂NO₃⁺
  3. CHNO₂
  4. DNO₃⁻
7.Hard

A piece of copper is placed in zinc sulfate solution. Zinc is more reactive than copper. What happens?

  1. ANo reaction occurs
  2. BZinc metal coats the copper and the solution turns blue
  3. CCopper replaces zinc, forming copper sulfate
  4. DHydrogen gas is produced
8.Hard

Hydrogen peroxide fizzes when poured on a cut because an enzyme in blood breaks it down. What gas is produced, and what type of reaction is it?

  1. AHydrogen, in a single replacement reaction
  2. BChlorine, in a synthesis reaction
  3. COxygen, in a decomposition reaction
  4. DCarbon dioxide, in a combustion reaction

Answer key

  1. 1. B · 32 g/mol
  2. 2. C · It dissolves more substances than other common liquids
  3. 3. C · The release of radiation by unstable atomic nuclei
  4. 4. A · 2
  5. 5. A · Estimating the age of material that was once alive
  6. 6. D · NO₃⁻
  7. 7. A · No reaction occurs
  8. 8. C · Oxygen, in a decomposition reaction

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