Chemia na egzaminy wstępne na pielęgniarstwo: karta pracy z odpowiedziami

Which type of radiation is the most penetrating?

1. ABeta particles
2. BGamma rays
3. CThey are all equally penetrating
4. DAlpha particles

Jaka właściwość jest typowa dla metali?

1. ASą kruchymi ciałami stałymi, które się rozpadają
2. BWiększość z nich jest gazami w temperaturze pokojowej
3. CSłabo przewodzą ciepło
4. DDobrze przewodzą prąd elektryczny

What is the name of the polyatomic ion NH₄⁺?

1. ANitrate
2. BNitride
3. CAmmonium
4. DAmmonia

Why does oxygen move from the alveoli of the lungs into the blood?

1. AThe partial pressure of oxygen is higher in the blood than in the alveoli
2. BOxygen is heavier than carbon dioxide
3. CThe partial pressure of oxygen is higher in the alveoli than in the blood
4. DOxygen is pumped actively into the blood

Vinegar contains acetic acid, CH₃COOH. Which functional group makes it an acid?

1. AThe hydroxyl group of an alcohol, –OH
2. BThe amino group, –NH₂
3. CThe methyl group, –CH₃
4. DThe carboxyl group, –COOH

Which bond joins amino acids together in a protein?

1. AA glycosidic bond
2. BA hydrogen bond
3. CAn ionic bond
4. DA peptide bond

In the Bohr model, what happens when an electron drops from a higher energy level to a lower one?

1. AThe electron leaves the atom
2. BThe atom gains a proton
3. CEnergy is absorbed from the surroundings
4. DEnergy is released, often as light

An element has the electron arrangement 2, 8, 8, 2. Where is it on the periodic table?

1. AGroup 2, period 2
2. BGroup 2, period 4
3. CGroup 4, period 2
4. DGroup 8, period 2