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.
Per i docenti: gratuita da stampare, copiare e usare in classe. Ogni nuova scheda ha nuovi valori e le sue soluzioni. Un link a ExamProblems nella pagina del corso è molto apprezzato.
Nome: ____________________ Data: ____________
1.Facile
Which process is exothermic (releases heat)?
AMelting a block of ice
BEvaporating water
CBurning methane gas
DPhotosynthesis
2.Facile
What is osmosis?
AThe breaking of a solid into ions
BThe movement of water across a semipermeable membrane
CThe movement of solute particles against a gradient using energy
DThe dissolving of a gas in a liquid
3.Facile
What is plasma, as a state of matter?
AThe liquid part of blood
BA liquid that has been cooled below its freezing point
CA very hot gas in which atoms have lost electrons and become ions
DA solid that conducts electricity
4.Media
How does electronegativity change going down a group?
AIt stays the same
BIt decreases
CIt doubles with each period
DIt increases
5.Media
How does atomic radius change going down a group?
AIt stays the same
BIt decreases
CIt increases
DIt decreases, then increases
6.Media
Water can act as an acid in some reactions and as a base in others. What is such a substance called?
ASaturated
BIsotonic
CAmphoteric
DNeutral
7.Difficile
Which compound contains both ionic and covalent bonds?
ASodium sulfate, Na₂SO₄
BWater, H₂O
CSodium chloride, NaCl
DMethane, CH₄
8.Difficile
Which substance has the lowest boiling point?
AIron
BWater
CSodium chloride
DHelium
Soluzioni
1. C · Burning methane gas
2. B · The movement of water across a semipermeable membrane
3. C · A very hot gas in which atoms have lost electrons and become ions
4. B · It decreases
5. C · It increases
6. C · Amphoteric
7. A · Sodium sulfate, Na₂SO₄
8. D · Helium
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