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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Name: ____________________   Date: ____________

1.Easy

What is a molecule?

  1. AA single atom with a positive charge
  2. BA mixture of two different elements
  3. CThe nucleus of an atom
  4. DTwo or more atoms held together by covalent bonds
2.Easy

What is a precipitate?

  1. AAn insoluble solid that forms when two solutions react
  2. BA substance that speeds up a reaction
  3. CA gas that bubbles out when two solutions are mixed
  4. DA liquid that forms when a solid melts
3.Easy

Which substance is a base?

  1. AVinegar (acetic acid)
  2. BSodium hydroxide (NaOH)
  3. CHydrochloric acid (HCl)
  4. DLemon juice (citric acid)
4.Medium

Nitrogen is in group 15 of the periodic table. How many valence electrons does a nitrogen atom have?

  1. A15
  2. B7
  3. C3
  4. D5
5.Medium

What is the mass of 0.5 mol of NaCl (molar mass 58.5 g/mol)?

  1. A117 g
  2. B58.5 g
  3. C29.25 g
  4. D0.5 g
6.Medium

What is the shape of a water molecule?

  1. ALinear
  2. BTetrahedral
  3. CBent
  4. DFlat triangle
7.Hard

Why is incomplete combustion of fuel in a poorly ventilated room dangerous?

  1. AIt produces nitrogen, which replaces oxygen in the blood
  2. BIt produces extra oxygen, which damages the lining of the lungs over time
  3. CIt produces water vapour, which is toxic
  4. DIt produces carbon monoxide, which binds to haemoglobin and blocks oxygen transport
8.Hard

A solution of a strong acid has pH 2. It is diluted with water to 10 times its original volume. What is the new pH?

  1. A3
  2. B20
  3. C1
  4. D0.2

Answer key

  1. 1. D · Two or more atoms held together by covalent bonds
  2. 2. A · An insoluble solid that forms when two solutions react
  3. 3. B · Sodium hydroxide (NaOH)
  4. 4. D · 5
  5. 5. C · 29.25 g
  6. 6. C · Bent
  7. 7. D · It produces carbon monoxide, which binds to haemoglobin and blocks oxygen transport
  8. 8. A · 3

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