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 does the coefficient 3 in "3H₂O" mean?

  1. AEach water molecule has three oxygen atoms
  2. BThere are three molecules (or moles) of water
  3. CWater has a charge of 3
  4. DEach molecule of water contains three hydrogen atoms
2.Easy

What is the SI unit of energy?

  1. ANewton
  2. BJoule
  3. CKelvin
  4. DWatt
3.Easy

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

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

Why do group 1 metals such as sodium react so easily?

  1. AThey have one outer electron that is easily lost
  2. BThey easily gain one extra electron
  3. CThey have a full outer shell of electrons
  4. DTheir nuclei contain no neutrons
5.Medium

When diluting a concentrated acid, which method is safe?

  1. AAdd the water quickly to the acid
  2. BAdd the acid slowly to the water
  3. CAdd the water slowly to the acid
  4. DMix them in any order, as long as it is fast
6.Medium

Which property is typical of ionic compounds such as NaCl?

  1. AHigh melting points; they conduct when dissolved
  2. BConducting electricity as dry solids
  3. CLow melting points and being gases at room temperature
  4. DBeing soft and easily bent like metals
7.Hard

Hydrogen is usually placed at the top of group 1. Which statement about hydrogen is correct?

  1. AIt is an alkali metal that is solid at room temperature
  2. BIt has one valence electron like group 1 metals, but it is a nonmetal gas
  3. CIt always forms H⁺ ions and never shares electrons
  4. DIt has a full outer shell like the noble gases
8.Hard

An ion has 12 protons and 10 electrons. What is it?

  1. ANa⁺
  2. BMg²⁺
  3. CNe
  4. DMg²⁻

Answer key

  1. 1. B · There are three molecules (or moles) of water
  2. 2. B · Joule
  3. 3. B · Oxygen
  4. 4. A · They have one outer electron that is easily lost
  5. 5. B · Add the acid slowly to the water
  6. 6. A · High melting points; they conduct when dissolved
  7. 7. B · It has one valence electron like group 1 metals, but it is a nonmetal gas
  8. 8. B · Mg²⁺

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