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

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
2.Makkelijk

Which process is exothermic (releases heat)?

  1. AMelting a block of ice
  2. BEvaporating water
  3. CBurning methane gas
  4. DPhotosynthesis
3.Makkelijk

What does the coefficient 3 in "3H₂O" mean?

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

Radioactive iodine (iodine-131) is used to treat some thyroid conditions. Why does it reach the thyroid?

  1. AThe thyroid gland takes up iodine to make its hormones
  2. BRadiation is always drawn toward the head
  3. CIodine is strongly attracted to the metal ions stored in the neck
  4. DIodine-131 is not radioactive inside the body
5.Gemiddeld

What is a polymer?

  1. AAn ion with more than one charge
  2. BA mixture of several different elements
  3. CA small molecule containing only two atoms of one element
  4. DA large molecule built from many repeating smaller units called monomers
6.Gemiddeld

Wat is de molaire massa van water (H = 1 g/mol, O = 16 g/mol)?

  1. A18 g/mol
  2. B32 g/mol
  3. C17 g/mol
  4. D10 g/mol
7.Moeilijk

Marble chips react with hydrochloric acid, giving off CO₂. The gas is produced quickly at first, then more and more slowly. Why does the rate fall?

  1. AThe activation energy steadily increases as the reaction goes on
  2. BThe products act as a catalyst that slows the reaction down
  3. CThe acid concentration falls as it is used up, so collisions become less frequent
  4. DThe CO₂ produced turns back into acid
8.Moeilijk

2090 J of heat is added to 50 g of water (specific heat 4,18 J/g·°C). By how much does its temperature rise?

  1. A41,8 °C
  2. B20 °C
  3. C10 °C
  4. D5 °C

Antwoordenblad

  1. 1. B · Two nonmetals
  2. 2. C · Burning methane gas
  3. 3. A · There are three molecules (or moles) of water
  4. 4. A · The thyroid gland takes up iodine to make its hormones
  5. 5. D · A large molecule built from many repeating smaller units called monomers
  6. 6. A · 18 g/mol
  7. 7. C · The acid concentration falls as it is used up, so collisions become less frequent
  8. 8. C · 10 °C

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