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. A2
  2. B8
  3. C1
  4. D18
2.Easy

Which element makes up the largest share of the human body by mass?

  1. ANitrogen
  2. BOxygen
  3. CCarbon
  4. DHydrogen
3.Easy

What is the SI unit of energy?

  1. AKelvin
  2. BNewton
  3. CJoule
  4. DWatt
4.Medium

Why is a water molecule polar?

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

A plastic block has a density of 0.8 g/cm³. What happens when it is placed in water (density 1.0 g/cm³)?

  1. AIt sinks
  2. BIt floats
  3. CIt dissolves
  4. DIt stays suspended halfway down
6.Medium

Why must temperatures be in kelvin in gas law calculations?

  1. AGas volume and pressure are proportional to the absolute temperature
  2. BKelvin values are always below 100
  3. CCelsius can only be used for liquids
  4. DThe kelvin scale has smaller degrees, which gives more precise answers
7.Hard

5.85 g of NaCl (molar mass 58.5 g/mol) is dissolved to make 500 mL of solution. What is the molarity?

  1. A2 M
  2. B0.2 M
  3. C0.1 M
  4. D0.05 M
8.Hard

Why does atomic radius decrease from left to right across a period?

  1. AMore protons pull the electrons of the same outer shell closer
  2. BEach element adds a new electron shell
  3. CNeutrons push the electrons outward less strongly
  4. DThe atoms lose electrons across the period

Answer key

  1. 1. A · 2
  2. 2. B · Oxygen
  3. 3. C · Joule
  4. 4. A · Oxygen pulls the shared electrons more strongly, and the molecule is bent
  5. 5. B · It floats
  6. 6. A · Gas volume and pressure are proportional to the absolute temperature
  7. 7. B · 0.2 M
  8. 8. A · More protons pull the electrons of the same outer shell closer

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