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 does the double arrow (⇌) in a chemical equation show?

  1. AThe reaction is reversible
  2. BThe reaction needs a catalyst
  3. CThe reaction is very fast
  4. DThe reaction releases heat
2.Facile

Come si chiama il passaggio da liquido a gas?

  1. ACondensazione
  2. BEvaporazione (vaporizzazione)
  3. CFusione
  4. DCongelamento
3.Facile

Which functional group is found in all alcohols?

  1. AHydroxyl group (–OH)
  2. BCarboxyl group (–COOH)
  3. CCarbonyl group (C=O) only
  4. DAmino group (–NH₂)
4.Media

What is the shape of a water molecule?

  1. AFlat triangle
  2. BLinear
  3. CBent
  4. DTetrahedral
5.Media

How many molecules are in 2 mol of carbon dioxide?

  1. A6,02 × 10²³
  2. B2,00 × 10²³
  3. C1,20 × 10²⁴
  4. D3,01 × 10²³
6.Media

In a reaction at equilibrium, a product is continuously removed. What happens?

  1. AThe reaction rate drops to zero
  2. BThe reactants run out immediately
  3. CThe equilibrium shifts to the left to form more reactants
  4. DMore product keeps forming as the equilibrium shifts to the right
7.Difficile

Raising the temperature by 10 °C can roughly double the rate of many reactions. What is the main reason?

  1. AThe activation energy itself is lowered by the extra heat
  2. BMany more collisions have at least the activation energy
  3. CThe reaction becomes more exothermic
  4. DThe particles become larger and easier to hit
8.Difficile

Which list puts fluorine, chlorine and bromine in order of increasing electronegativity?

  1. ABr < Cl < F
  2. BBr < F < Cl
  3. CF < Cl < Br
  4. DCl < Br < F

Soluzioni

  1. 1. A · The reaction is reversible
  2. 2. B · Evaporazione (vaporizzazione)
  3. 3. A · Hydroxyl group (–OH)
  4. 4. C · Bent
  5. 5. C · 1,20 × 10²⁴
  6. 6. D · More product keeps forming as the equilibrium shifts to the right
  7. 7. B · Many more collisions have at least the activation energy
  8. 8. A · Br < Cl < F

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