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

In a chemical equation, what are the reactants?

  1. AThe catalysts written above the arrow
  2. BThe numbers written in front of each formula
  3. CThe new substances formed, written to the right of the arrow
  4. DThe starting substances, written to the left of the arrow
2.Easy

What are isotopes?

  1. AAtoms of the same element with different numbers of neutrons
  2. BAtoms of the same element with different numbers of protons
  3. CAtoms of different elements with the same number of neutrons
  4. DIons that have gained electrons
3.Easy

What is a vertical column of the periodic table called?

  1. AA series
  2. BA shell
  3. CA period
  4. DA group
4.Medium

What percentage of the mass of water (H₂O, 18 g/mol) is hydrogen (H = 1 g/mol)?

  1. AAbout 89%
  2. BAbout 11%
  3. CAbout 5.6%
  4. DAbout 67%
5.Medium

Which property is typical of ionic compounds such as NaCl?

  1. ABeing soft and easily bent like metals
  2. BLow melting points and being gases at room temperature
  3. CHigh melting points; they conduct when dissolved
  4. DConducting electricity as dry solids
6.Medium

How much heat is needed to raise the temperature of 100 g of water by 10 °C (specific heat of water = 4.18 J/g·°C)?

  1. A41,800 J
  2. B4180 J
  3. C41.8 J
  4. D418 J
7.Hard

An isotope has a half-life of 8 days. How long does it take for 100 g to decay to 12.5 g?

  1. A16 days
  2. B64 days
  3. C24 days
  4. D32 days
8.Hard

Which statement correctly distinguishes a scientific law from a scientific theory?

  1. ALaws apply only to chemistry, theories only to biology
  2. BA law is only a guess, while a theory is a proven fact
  3. CA theory becomes a law once it is proved
  4. DA law describes what happens; a theory explains why it happens

Answer key

  1. 1. D · The starting substances, written to the left of the arrow
  2. 2. A · Atoms of the same element with different numbers of neutrons
  3. 3. D · A group
  4. 4. B · About 11%
  5. 5. C · High melting points; they conduct when dissolved
  6. 6. B · 4180 J
  7. 7. C · 24 days
  8. 8. D · A law describes what happens; a theory explains why it happens

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