Scheda di esercizi di Chimica per i test di ammissione a infermieristica con soluzioni

Scheda di esercizi di Chimica per i test di ammissione a infermieristica gratuita e stampabile: 8 esercizi dal livello facile a quello d’esame, con le soluzioni. Stampala o salvala come PDF.

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Nome: ____________________   Data: ____________

1.Facile

What is the melting point of a substance?

  1. AThe temperature at which its liquid turns into a gas
  2. BThe temperature at which it catches fire
  3. CThe temperature at which it dissolves in water
  4. DThe temperature at which its solid turns into a liquid
2.Facile

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

  1. AMass and volume
  2. BVolume and temperature
  3. CPressure and temperature
  4. DPressure and volume
3.Facile

Which method separates two liquids with different boiling points, such as alcohol and water?

  1. AFiltration
  2. BUsing a magnet
  3. CSieving
  4. DDistillation
4.Media

How many oxygen atoms are in one formula unit of calcium nitrate, Ca(NO₃)₂?

  1. A6
  2. B2
  3. C5
  4. D3
5.Media

Which halogen is the most reactive?

  1. ABromine
  2. BFluorine
  3. CIodine
  4. DChlorine
6.Media

A temperatura costante il volume di un gas si dimezza. Che cosa accade alla sua pressione?

  1. ADiventa quattro volte più piccola
  2. BRaddoppia
  3. CSi dimezza
  4. DResta uguale
7.Difficile

Carbon-14 (atomic number 6) decays by emitting a beta particle. What does it become?

  1. ABoron-14
  2. BCarbon-13
  3. CNitrogen-14
  4. DNitrogen-15
8.Difficile

Why does drinking seawater make dehydration worse?

  1. ASeawater is hypertonic, so the body loses extra water getting rid of the salt
  2. BSeawater is hypotonic, so water rushes into cells and makes them burst
  3. CSeawater contains no water molecules the body can use
  4. DSeawater is isotonic, so it cannot be absorbed

Soluzioni

  1. 1. D · The temperature at which its solid turns into a liquid
  2. 2. D · Pressure and volume
  3. 3. D · Distillation
  4. 4. A · 6
  5. 5. B · Fluorine
  6. 6. B · Raddoppia
  7. 7. C · Nitrogen-14
  8. 8. A · Seawater is hypertonic, so the body loses extra water getting rid of the salt

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