Chemistry for nursing entrance exams worksheet with answers

What is a vertical column of the periodic table called?

1. AA series
2. BA shell
3. CA group
4. DA period

Which unit is commonly used for the density of a liquid?

1. Akg
2. Bg/mL
3. Cg·mL
4. DmL/g

Which process is exothermic (releases heat)?

1. AEvaporating water
2. BPhotosynthesis
3. CMelting a block of ice
4. DBurning methane gas

2 moles of glucose are dissolved in water to make 4 litres of solution. What is the molarity?

1. A2 M
2. B4 M
3. C8 M
4. D0.5 M

A reaction has ΔH = −890 kJ/mol. What does the negative sign tell you?

1. AThe reaction is at equilibrium
2. BThe reaction is exothermic
3. CThe reaction is endothermic
4. DThe reaction needs a catalyst

A gas mixture contains nitrogen at 600 mmHg, oxygen at 150 mmHg and other gases at 10 mmHg. What is the total pressure?

1. A600 mmHg
2. B760 mmHg
3. C750 mmHg
4. D253 mmHg

Samples of hydrogen gas (H₂) and oxygen gas (O₂) are at the same temperature. Which statement is correct?

1. ABoth move at the same average speed
2. BO₂ molecules move faster because they are heavier
3. CH₂ molecules have more kinetic energy and move faster
4. DThey have the same average kinetic energy, but H₂ molecules move faster

When water boils, what is overcome?

1. AThe forces holding the oxygen nucleus together
2. BHydrogen bonds between water molecules
3. CThe covalent O–H bonds inside each molecule
4. DThe ionic bonds between H⁺ and O²⁻