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 colour does blue litmus paper turn in an acid?

  1. APurple
  2. BGreen
  3. CRed
  4. DBlue (no change)
2.Facile

DNA belongs to which group of biological molecules?

  1. ANucleic acids
  2. BProteins
  3. CCarbohydrates
  4. DLipids
3.Facile

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

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

Sulfur has 16 electrons. In which period of the periodic table is it?

  1. APeriod 16
  2. BPeriod 3
  3. CPeriod 6
  4. DPeriod 2
5.Media

Magnesium forms Mg²⁺ ions and oxygen forms O²⁻ ions. What is the formula of magnesium oxide?

  1. AMg₂O
  2. BMgO
  3. CMg₂O₂
  4. DMgO₂
6.Media

Qual è la massa molare dell'acqua (H = 1 g/mol, O = 16 g/mol)?

  1. A17 g/mol
  2. B18 g/mol
  3. C10 g/mol
  4. D32 g/mol
7.Difficile

Which of these is a redox reaction?

  1. ACaCO₃ → CaO + CO₂
  2. BNaOH + HCl → NaCl + H₂O
  3. CAgNO₃ + NaCl → AgCl + NaNO₃
  4. DZn + CuSO₄ → ZnSO₄ + Cu
8.Difficile

How does soap help remove grease from skin?

  1. ASoap makes the grease more dense so it sinks
  2. BSoap molecules are completely nonpolar, so they dissolve grease like a solvent
  3. CSoap reacts with grease to form water and carbon dioxide
  4. DEach soap molecule has a polar end that attracts water and a nonpolar end that attracts grease

Soluzioni

  1. 1. C · Red
  2. 2. A · Nucleic acids
  3. 3. A · The reaction is reversible
  4. 4. B · Period 3
  5. 5. B · MgO
  6. 6. B · 18 g/mol
  7. 7. D · Zn + CuSO₄ → ZnSO₄ + Cu
  8. 8. D · Each soap molecule has a polar end that attracts water and a nonpolar end that attracts grease

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