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 maximum number of electrons the first electron shell can hold?

  1. A18
  2. B1
  3. C8
  4. D2
2.Easy

What does the octet rule state?

  1. AEvery stable molecule contains exactly 8 atoms
  2. BEvery stable atom has exactly 8 protons in its nucleus
  3. CAtoms tend to gain, lose or share electrons to get 8 outer electrons
  4. DAn atom can form a maximum of 8 covalent bonds
3.Easy

Which is a sign that a chemical reaction may have taken place?

  1. ASugar dissolves completely when stirred into water
  2. BA gas is produced when two liquids are mixed
  3. CA block of wax melts when it is heated
  4. DWater freezes into ice when put in a freezer
4.Medium

A solution has a pH of 10. What is its pOH at 25 °C?

  1. A14
  2. B24
  3. C4
  4. D10
5.Medium

The amino acid glycine has an –NH₂ group and a –COOH group. What are these two groups called?

  1. AAn amino group and a carboxyl group
  2. BA hydroxyl group and a methyl group
  3. CA carbonyl group and an ester group
  4. DA phosphate group and a hydroxyl group
6.Medium

What is the percent by mass of salt in a solution made from 15 g of salt and 135 g of water?

  1. A15%
  2. B11%
  3. C10%
  4. D90%
7.Hard

Hyperbaric oxygen therapy places a patient in a chamber with oxygen at higher than normal pressure. Why does this raise the oxygen dissolved in blood plasma?

  1. AHigher pressure lowers body temperature, so the blood can hold much more gas
  2. BHigher pressure turns the oxygen into a liquid
  3. CHigher pressure makes red blood cells divide faster
  4. DGas solubility in a liquid increases with the partial pressure of the gas
8.Hard

The reaction 2SO₂ + O₂ ⇌ 2SO₃ reaches equilibrium. What is true at equilibrium?

  1. AThe concentrations of reactants and products must be equal
  2. BBoth reactions have stopped completely
  3. COnly products are present in the container
  4. DThe forward and reverse reactions continue at equal rates

Answer key

  1. 1. D · 2
  2. 2. C · Atoms tend to gain, lose or share electrons to get 8 outer electrons
  3. 3. B · A gas is produced when two liquids are mixed
  4. 4. C · 4
  5. 5. A · An amino group and a carboxyl group
  6. 6. C · 10%
  7. 7. D · Gas solubility in a liquid increases with the partial pressure of the gas
  8. 8. D · The forward and reverse reactions continue at equal rates

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