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

For a given substance, in which state do its particles move fastest?

1. ASolid
2. BGas
3. CThey move at the same speed in all states
4. DLiquid

Nella reazione A + B → AB, che tipo di reazione è rappresentata?

1. ADecomposizione
2. BScambio semplice
3. CSintesi (combinazione)
4. DCombustione

In a solution, what is the solvent?

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

A solution has a pH of 10. What is its pOH at 25 °C?

1. A14
2. B10
3. C4
4. D24

A red blood cell is placed in a concentrated (hypertonic) salt solution. What happens?

1. ASalt leaves the cell, which swells
2. BThe cell stays the same size and shape
3. CWater enters the cell, which swells and may burst
4. DWater leaves the cell, which shrinks

Quale elemento è il più elettronegativo?

1. AL'elio
2. BIl fluoro
3. CIl ferro
4. DIl sodio

Which coefficients balance the equation for cellular respiration, __C₆H₁₂O₆ + __O₂ → __CO₂ + __H₂O?

1. A1, 3, 6, 6
2. B2, 6, 12, 6
3. C1, 6, 6, 6
4. D1, 6, 6, 12

Qual è la massa molare del glucosio, C₆H₁₂O₆ (C = 12, H = 1, O = 16 g/mol)?

1. A96 g/mol
2. B180 g/mol
3. C168 g/mol
4. D29 g/mol