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 are the usual units of molar mass?

  1. Ag/mol
  2. Bmol/L
  3. Cmol/g
  4. Dg/L
2.Easy

What is the term for anything that has mass and takes up space?

  1. AEnergy
  2. BHeat
  3. CForce
  4. DMatter
3.Easy

Apart from mercury, which element is a liquid at room temperature?

  1. AChlorine
  2. BSodium
  3. CBromine
  4. DIodine
4.Medium

How does increasing the temperature usually affect the rate of a reaction?

  1. AIt has no effect on the rate
  2. BIt stops the reaction completely
  3. CIt increases the rate
  4. DIt decreases the rate
5.Medium

Why is a water molecule polar?

  1. AWater molecules are straight, with both hydrogens on one line
  2. BWater has ionic bonds between hydrogen and oxygen
  3. COxygen pulls the shared electrons more strongly, and the molecule is bent
  4. DHydrogen is more electronegative than oxygen
6.Medium

What are the products of the complete combustion of a hydrocarbon such as methane?

  1. ACarbon monoxide and hydrogen
  2. BCarbon and hydrogen gas
  3. CCarbon dioxide and water
  4. DOxygen and water
7.Hard

Marble chips react with hydrochloric acid, giving off CO₂. The gas is produced quickly at first, then more and more slowly. Why does the rate fall?

  1. AThe products act as a catalyst that slows the reaction down
  2. BThe acid concentration falls as it is used up, so collisions become less frequent
  3. CThe activation energy steadily increases as the reaction goes on
  4. DThe CO₂ produced turns back into acid
8.Hard

Uranium-238 (atomic number 92) undergoes alpha decay. Which nucleus is formed?

  1. AThorium-238 (atomic number 90)
  2. BPlutonium-242 (atomic number 94)
  3. CProtactinium-234 (atomic number 91)
  4. DThorium-234 (atomic number 90)

Answer key

  1. 1. A · g/mol
  2. 2. D · Matter
  3. 3. C · Bromine
  4. 4. C · It increases the rate
  5. 5. C · Oxygen pulls the shared electrons more strongly, and the molecule is bent
  6. 6. C · Carbon dioxide and water
  7. 7. B · The acid concentration falls as it is used up, so collisions become less frequent
  8. 8. D · Thorium-234 (atomic number 90)

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