Werkblad Scheikunde voor toelatingsexamens verpleegkunde met antwoorden

Gratis printbaar werkblad Scheikunde voor toelatingsexamens verpleegkunde: 8 opgaven van makkelijk tot tentamenniveau, met antwoordenblad. Print het of sla het op als pdf.

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Naam: ____________________   Datum: ____________

1.Makkelijk

What does the law of conservation of mass state?

  1. AMass is lost as heat in every reaction
  2. BMass is neither created nor destroyed in a chemical reaction
  3. CGases have no mass
  4. DThe mass of products is always greater than the mass of reactants
2.Makkelijk

What is the change from a gas directly to a solid, skipping the liquid state, called?

  1. ADeposition
  2. BSublimation
  3. CCondensation
  4. DFreezing
3.Makkelijk

Between which kinds of elements do covalent bonds usually form?

  1. ATwo group 1 metals
  2. BTwo nonmetals
  3. CA metal and a nonmetal
  4. DA metal and a noble gas
4.Gemiddeld

Which type of bond holds the two atoms together in a nitrogen molecule, N₂?

  1. AA double covalent bond
  2. BAn ionic bond
  3. CA single covalent bond
  4. DA triple covalent bond
5.Gemiddeld

Which halogen is the most reactive?

  1. AFluorine
  2. BIodine
  3. CChlorine
  4. DBromine
6.Gemiddeld

Why must temperatures be in kelvin in gas law calculations?

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

Samples of hydrogen gas (H₂) and oxygen gas (O₂) are at the same temperature. Which statement is correct?

  1. AThey have the same average kinetic energy, but H₂ molecules move faster
  2. BBoth move at the same average speed
  3. CH₂ molecules have more kinetic energy and move faster
  4. DO₂ molecules move faster because they are heavier
8.Moeilijk

Vitamin C is water-soluble and vitamin D is fat-soluble. What does this suggest about their molecules?

  1. AVitamin C is nonpolar, while vitamin D is strongly polar
  2. BBoth are equally polar
  3. CBoth are ionic compounds
  4. DVitamin C is polar, while vitamin D is mostly nonpolar

Antwoordenblad

  1. 1. B · Mass is neither created nor destroyed in a chemical reaction
  2. 2. A · Deposition
  3. 3. B · Two nonmetals
  4. 4. D · A triple covalent bond
  5. 5. A · Fluorine
  6. 6. C · Gas volume and pressure are proportional to the absolute temperature
  7. 7. A · They have the same average kinetic energy, but H₂ molecules move faster
  8. 8. D · Vitamin C is polar, while vitamin D is mostly nonpolar

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