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. BThe mass of products is always greater than the mass of reactants
  3. CMass is neither created nor destroyed in a chemical reaction
  4. DGases have no mass
2.Makkelijk

Which three elements make up carbohydrates?

  1. ACarbon, hydrogen and oxygen
  2. BCarbon, nitrogen and sulfur
  3. CCarbon, hydrogen and nitrogen
  4. DHydrogen, nitrogen and phosphorus
3.Makkelijk

What do the letters STP stand for in gas chemistry?

  1. AStandard temperature and pressure
  2. BStable temperature point
  3. CStandard time and pressure
  4. DSpecific temperature and particles
4.Gemiddeld

How many grams are in 2,5 kg?

  1. A250 g
  2. B0,0025 g
  3. C25 g
  4. D2500 g
5.Gemiddeld

Wat is de elektronenconfiguratie (schilindeling) van een natriumatoom (11 elektronen)?

  1. A2, 8, 1
  2. B2, 9
  3. C2, 8, 2
  4. D8, 2, 1
6.Gemiddeld

Why does the vapour pressure of a liquid increase as it is heated?

  1. AThe molecules become heavier and press harder on the surface
  2. BThe liquid's volume decreases and squeezes out vapour
  3. CThe attractions between the molecules become stronger
  4. DMore molecules have enough energy to escape into the gas phase
7.Moeilijk

A solution of a strong acid has pH 2. It is diluted with water to 10 times its original volume. What is the new pH?

  1. A3
  2. B20
  3. C1
  4. D0,2
8.Moeilijk

A salt is dissolved in water in an insulated cup, and the water temperature falls from 25 °C to 20 °C. Which statement is correct?

  1. ADissolving is endothermic; the dissolving salt took heat from the water
  2. BNo energy change occurred, because the temperature fell
  3. CDissolving is endothermic; the water took heat from the salt
  4. DDissolving is exothermic; the dissolving salt released heat into the water

Antwoordenblad

  1. 1. C · Mass is neither created nor destroyed in a chemical reaction
  2. 2. A · Carbon, hydrogen and oxygen
  3. 3. A · Standard temperature and pressure
  4. 4. D · 2500 g
  5. 5. A · 2, 8, 1
  6. 6. D · More molecules have enough energy to escape into the gas phase
  7. 7. A · 3
  8. 8. A · Dissolving is endothermic; the dissolving salt took heat from the water

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