Cevaplı Hemşirelik giriş sınavları için kimya çalışma kâğıdı

Boyle's law describes the relationship between which two properties of a gas, at constant temperature?

1. APressure and temperature
2. BPressure and volume
3. CMass and volume
4. DVolume and temperature

What do the letters STP stand for in gas chemistry?

1. AStandard time and pressure
2. BStandard temperature and pressure
3. CStable temperature point
4. DSpecific temperature and particles

What is an unsaturated solution?

1. AA solution that can still dissolve more solute
2. BA solution that holds the maximum possible solute
3. CA solution with no solute at all
4. DA solution with undissolved solid at the bottom

How many lone (non-bonding) pairs of electrons are on the oxygen atom in a water molecule?

1. A2
2. B1
3. C4
4. D0

Using significant figures, what is 2,5 cm × 3,42 cm?

1. A8,550 cm²
2. B8,6 cm²
3. C8,55 cm²
4. D9 cm²

Which type of bond holds the two atoms together in a nitrogen molecule, N₂?

1. AAn ionic bond
2. BA double covalent bond
3. CA single covalent bond
4. DA triple covalent bond

How does a rise in temperature affect how much carbon dioxide gas can dissolve in a soft drink?

1. ATemperature has no effect on gas solubility
2. BLess gas dissolves, so warm drinks go flat faster
3. CThe gas turns into a solid at higher temperature
4. DMore gas dissolves, so warm drinks stay fizzy for longer

Which phase change absorbs energy from the surroundings (is endothermic)?

1. ACondensation
2. BFreezing
3. CDeposition
4. DSublimation