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

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

  1. AStrongly basic
  2. BNeutral
  3. CWeakly acidic
  4. DStrongly acidic
2.Makkelijk

What is an unsaturated solution?

  1. AA solution that holds the maximum possible solute
  2. BA solution that can still dissolve more solute
  3. CA solution with undissolved solid at the bottom
  4. DA solution with no solute at all
3.Makkelijk

What does the rule "like dissolves like" mean?

  1. APolar solvents dissolve polar substances, and nonpolar solvents dissolve nonpolar ones
  2. BEvery substance dissolves in water
  3. CSolids dissolve only in other solids
  4. DOnly substances with identical formulas can ever dissolve in each other
4.Gemiddeld

Wat meet temperatuur volgens de kinetische gastheorie?

  1. ADe grootte van de houder
  2. BHet totale aantal deeltjes
  3. CDe gemiddelde kinetische energie van de deeltjes
  4. DDe massa van elk deeltje
5.Gemiddeld

Why does keeping food in a refrigerator slow down spoilage?

  1. ALower temperatures raise the activation energy of every reaction
  2. BCold air contains no oxygen
  3. CLower temperatures slow down chemical and microbial reactions
  4. DCold temperatures add preservatives to the food
6.Gemiddeld

A solution has a pH of 2. What is its hydrogen ion concentration?

  1. A2 mol/L
  2. B1 × 10⁻² mol/L
  3. C1 × 10² mol/L
  4. D1 × 10⁻¹² mol/L
7.Moeilijk

A scuba diver breathes compressed air deep underwater. Why must the diver breathe out while swimming up to the surface?

  1. AThe air in the lungs expands as the outside pressure falls
  2. BThe water gets warmer near the surface
  3. COxygen turns to liquid at the surface
  4. DThe air in the lungs shrinks as the outside pressure falls
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. BLaws apply only to chemistry, theories only to biology
  3. CA theory becomes a law once it is proved
  4. DA law is only a guess, while a theory is a proven fact

Antwoordenblad

  1. 1. A · Strongly basic
  2. 2. B · A solution that can still dissolve more solute
  3. 3. A · Polar solvents dissolve polar substances, and nonpolar solvents dissolve nonpolar ones
  4. 4. C · De gemiddelde kinetische energie van de deeltjes
  5. 5. C · Lower temperatures slow down chemical and microbial reactions
  6. 6. B · 1 × 10⁻² mol/L
  7. 7. A · The air in the lungs expands as the outside pressure falls
  8. 8. A · A law describes what happens; a theory explains why it happens

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