Робочий аркуш «Хімія для вступних іспитів на медсестринство» з відповідями

What is the term for anything that has mass and takes up space?

1. AForce
2. BMatter
3. CHeat
4. DEnergy

Який елемент має символ K?

1. AКальцій
2. BКриптон
3. CВуглець
4. DКалій

What is an empirical formula?

1. AThe mass of one mole of a compound
2. BThe simplest whole-number ratio of atoms in a compound
3. CA drawing of how the atoms are bonded
4. DThe actual number of each atom in one molecule

Glucose has the molecular formula C₆H₁₂O₆. What is its empirical formula?

1. ACH₂O
2. BC₂H₄O₂
3. CC₆H₁₂O₆
4. DCHO

What is nuclear fission?

1. AThe burning of uranium in oxygen
2. BThe splitting of a heavy nucleus into smaller nuclei
3. CThe joining of two light nuclei to form a heavier nucleus
4. DThe loss of electrons from an atom

Drops of water form on the outside of a glass of ice water. Where does this water come from?

1. AWater leaks through tiny holes in the glass
2. BThe ice evaporates through the glass
3. CWater vapour in the air condenses on the cold glass
4. DThe glass releases water when it gets cold

100 mL of 1 M NaCl is mixed with 100 mL of 3 M NaCl. What is the concentration of the mixture?

1. A2 M
2. B4 M
3. C1,5 M
4. D3 M

У реакції 2H₂ + O₂ → 2H₂O 4 g водню (молярна маса 2 g/mol) реагує з достатньою кількістю кисню. Яка маса води утворюється (молярна маса 18 g/mol)?

1. A72 g
2. B4 g
3. C36 g
4. D18 g