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 is an electrolyte?

  1. AA substance that forms ions and conducts electricity when dissolved in water
  2. BA gas that dissolves in blood
  3. CA substance that dissolves as whole molecules without forming any ions
  4. DA metal that conducts electricity as a solid
2.Makkelijk

A cleaning solution has a pH of 12. How is it described?

  1. ANeutral
  2. BStrongly acidic
  3. CWeakly acidic
  4. DStrongly basic
3.Makkelijk

Charles's law describes the relationship between which two properties of a gas, at constant pressure?

  1. ADensity and mass
  2. BPressure and number of moles
  3. CPressure and volume
  4. DVolume and temperature
4.Gemiddeld

Nitrogen is in group 15 of the periodic table. How many valence electrons does a nitrogen atom have?

  1. A3
  2. B15
  3. C5
  4. D7
5.Gemiddeld

Which is larger, a sodium atom (Na) or a sodium ion (Na⁺)?

  1. AIt depends on the temperature
  2. BThe sodium ion
  3. CThe sodium atom
  4. DThey are the same size
6.Gemiddeld

Which coefficients balance __Na + __Cl₂ → __NaCl?

  1. A2, 1, 2
  2. B1, 2, 1
  3. C1, 1, 1
  4. D2, 2, 1
7.Moeilijk

A liquid has a density of 1,2 g/mL. What is the mass of 250 mL of this liquid?

  1. A300 g
  2. B208 g
  3. C251,2 g
  4. D30 g
8.Moeilijk

Which statement correctly distinguishes a scientific law from a scientific theory?

  1. AA law describes what happens; a theory explains why it happens
  2. BA law is only a guess, while a theory is a proven fact
  3. CA theory becomes a law once it is proved
  4. DLaws apply only to chemistry, theories only to biology

Antwoordenblad

  1. 1. A · A substance that forms ions and conducts electricity when dissolved in water
  2. 2. D · Strongly basic
  3. 3. D · Volume and temperature
  4. 4. C · 5
  5. 5. C · The sodium atom
  6. 6. A · 2, 1, 2
  7. 7. A · 300 g
  8. 8. A · A law describes what happens; a theory explains why it happens

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