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

In a solution, what is the solvent?

  1. AThe substance that does the dissolving, usually present in the larger amount
  2. BAny solid that will not dissolve, however long it is stirred
  3. CThe gas given off when a solid dissolves
  4. DThe substance that is dissolved, usually present in the smaller amount
2.Makkelijk

Where do the mole ratios used in stoichiometry come from?

  1. AThe physical states of the substances
  2. BThe molar masses of the reactants
  3. CThe subscripts in each formula
  4. DThe coefficients of the balanced equation
3.Makkelijk

At sea level, at what temperature does pure water freeze?

  1. A0 °C (32 °F)
  2. B32 °C (90 °F)
  3. C100 °C (212 °F)
  4. D−32 °C (−26 °F)
4.Gemiddeld

Water has a high specific heat capacity. How does this help the human body?

  1. AIt helps keep body temperature stable
  2. BIt makes water a poor solvent for salts
  3. CIt makes the blood more acidic
  4. DIt allows oxygen to dissolve in water more easily
5.Gemiddeld

Nitric acid (HNO₃) reacts with potassium hydroxide (KOH). Which salt forms?

  1. ANitrogen hydroxide, NOH
  2. BPotassium hydride, KH
  3. CPotassium nitrite, KNO₂
  4. DPotassium nitrate, KNO₃
6.Gemiddeld

Wat is het massapercentage zout in een oplossing van 15 g zout en 135 g water?

  1. A15%
  2. B10%
  3. C11%
  4. D90%
7.Moeilijk

What is the formula of calcium phosphate, made from Ca²⁺ and PO₄³⁻ ions?

  1. ACa₂(PO₄)₃
  2. BCa₃(PO₄)₂
  3. CCaPO₄
  4. DCa₃PO₄
8.Moeilijk

Why does a sodium ion (Na⁺) have almost the same mass as a sodium atom?

  1. AThe only difference is one electron, which has a tiny mass
  2. BThe ion gains a neutron that balances the loss
  3. CThe ion has one fewer proton, which has a tiny mass
  4. DIons and atoms always have exactly the same mass

Antwoordenblad

  1. 1. A · The substance that does the dissolving, usually present in the larger amount
  2. 2. D · The coefficients of the balanced equation
  3. 3. A · 0 °C (32 °F)
  4. 4. A · It helps keep body temperature stable
  5. 5. D · Potassium nitrate, KNO₃
  6. 6. B · 10%
  7. 7. B · Ca₃(PO₄)₂
  8. 8. A · The only difference is one electron, which has a tiny mass

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