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 change from a liquid to a solid called?

  1. AMelting
  2. BEvaporation
  3. CCondensation
  4. DFreezing
2.Facile

Which property is typical of nonmetals?

  1. AThey are poor conductors of heat and electricity
  2. BThey are shiny and easily bent into wires
  3. CThey are all solids at room temperature
  4. DThey easily lose electrons to form positive ions
3.Facile

What is radioactivity?

  1. AThe release of heat and light when fuels burn in air
  2. BThe glow produced by any hot object
  3. CThe release of radiation by unstable atomic nuclei
  4. DThe flow of electrons through a metal wire
4.Media

A gas mixture contains nitrogen at 600 mmHg, oxygen at 150 mmHg and other gases at 10 mmHg. What is the total pressure?

  1. A600 mmHg
  2. B750 mmHg
  3. C760 mmHg
  4. D253 mmHg
5.Media

2 moli di glucosio vengono sciolte in acqua per ottenere 4 litri di soluzione. Qual è la molarità?

  1. A0,5 M
  2. B8 M
  3. C2 M
  4. D4 M
6.Media

What is the molar mass of calcium carbonate, CaCO₃ (Ca = 40, C = 12, O = 16 g/mol)?

  1. A116 g/mol
  2. B100 g/mol
  3. C84 g/mol
  4. D68 g/mol
7.Difficile

Water is split as 2H₂O → 2H₂ + O₂. What volume of O₂ at STP (0 °C and 1 atm) forms from 2 mol of water?

  1. A67,2 L
  2. B11,2 L
  3. C22,4 L
  4. D44,8 L
8.Difficile

A catalyst is added to an exothermic reaction. How does the energy diagram change?

  1. AThe reaction becomes endothermic
  2. BThe peak is lower, but the energy of reactants and products stays the same
  3. CThe products end up at a lower energy, so more heat is released
  4. DThe reactants start at a higher energy

Soluzioni

  1. 1. D · Freezing
  2. 2. A · They are poor conductors of heat and electricity
  3. 3. C · The release of radiation by unstable atomic nuclei
  4. 4. C · 760 mmHg
  5. 5. A · 0,5 M
  6. 6. B · 100 g/mol
  7. 7. C · 22,4 L
  8. 8. B · The peak is lower, but the energy of reactants and products stays the same

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