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

According to collision theory, what must happen for particles to react?

  1. AThey must collide with enough energy and the right orientation
  2. BThey must have the same mass
  3. CThey must stay completely still next to each other
  4. DThey must both be in the solid state at the same time
2.Easy

In a chemical equation, what are the reactants?

  1. AThe numbers written in front of each formula
  2. BThe catalysts written above the arrow
  3. CThe starting substances, written to the left of the arrow
  4. DThe new substances formed, written to the right of the arrow
3.Easy

Which element is a metalloid?

  1. ASilicon
  2. BSulfur
  3. CSodium
  4. DArgon
4.Medium

Nitric acid (HNO₃) reacts with potassium hydroxide (KOH). Which salt forms?

  1. APotassium nitrite, KNO₂
  2. BNitrogen hydroxide, NOH
  3. CPotassium nitrate, KNO₃
  4. DPotassium hydride, KH
5.Medium

Which gas forms when hydrochloric acid reacts with calcium carbonate?

  1. AHydrogen
  2. BOxygen
  3. CChlorine
  4. DCarbon dioxide
6.Medium

What is the formula of aluminium oxide, made of Al³⁺ and O²⁻ ions?

  1. AAl₂O₃
  2. BAl₃O₂
  3. CAlO₃
  4. DAlO
7.Hard

Two isotopes of the same element differ in which property?

  1. AAtomic number
  2. BChemical reactions they take part in
  3. CNumber of electrons in the neutral atom
  4. DMass number
8.Hard

The pH of a solution changes from 6 to 4. What happened to its hydrogen ion concentration?

  1. AIt became 2 times greater
  2. BIt became 100 times greater
  3. CIt became 2 times smaller
  4. DIt became 100 times smaller

Answer key

  1. 1. A · They must collide with enough energy and the right orientation
  2. 2. C · The starting substances, written to the left of the arrow
  3. 3. A · Silicon
  4. 4. C · Potassium nitrate, KNO₃
  5. 5. D · Carbon dioxide
  6. 6. A · Al₂O₃
  7. 7. D · Mass number
  8. 8. B · It became 100 times greater

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