4278438
Descripción
Test por Minghua Yin, actualizado hace más de 1 año
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Creado por Minghua Yin
hace más de 8 años
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|
Pregunta 1
Pregunta
Who does the worst Yoda impression?
Respuesta
-
Yousuf
-
Neil
-
Ming
-
Dr Matthews
Pregunta 2
Pregunta
Complete the following definition of the first ionisation energy:
The energy required to [blank_start]remove[blank_end] one [blank_start]electron[blank_end] from each atom in [blank_start]one mole[blank_end] of [blank_start]gaseous atoms[blank_end] to form [blank_start]one mole[blank_end] of [blank_start]gaseous 1+ ions[blank_end].
Respuesta
-
remove
-
electron
-
one mole
-
gaseous atoms
-
one mole
-
gaseous 1+ ions
Pregunta 3
Pregunta
How many p-orbitals make up one p-subshell?
Respuesta
-
1
-
2
-
3
-
4
-
5
Pregunta 4
Pregunta
Complete the following definition of relative atomic mass:
The average [blank_start]weighted[blank_end] mass of an atom of an [blank_start]element[blank_end] relative to [blank_start]1/12[blank_end] of the mass of a [blank_start]carbon-12[blank_end] atom.
Respuesta
-
weighted
-
element
-
1/12
-
carbon-12
Pregunta 5
Pregunta
The first ionisation energy of boron is higher than the first ionisation energy of beryllium.
Respuesta
- True
- False
Pregunta 6
Pregunta
Complete the following processes that occur during mass spectrometry in the correct order:
Vaporisation
[blank_start]Ionisation[blank_end]
[blank_start]Acceleration[blank_end]
[blank_start]Deflection[blank_end]
[blank_start]Detection[blank_end]
Recording
Respuesta
-
Ionisation
-
Acceleration
-
Deflection
-
Detection
Pregunta 7
Pregunta
Fill in the blanks:
To 2 decimal places, Avogadro's constant is [blank_start]6.02[blank_end] × [blank_start]10^23[blank_end].
Respuesta
-
6.02
-
10^23
Pregunta 8
Pregunta
Fill in the blanks:
The y-axis of a mass spectrum is the percentage abundance of an isotope. The x-axis is mass/[blank_start]charge[blank_end] ratio.
Respuesta
-
charge
Pregunta 9
Pregunta
What is room temperature and pressure?
Respuesta
-
20 degrees Celsius, 101 kPa
-
25 degrees Celsius, 101 kPa
-
25 degrees Celsius, 100 kPa
-
20 degrees Celsius, 100 kPa
Pregunta 10
Pregunta
What are "standard conditions"?
Respuesta
-
298 K, 100 kPa
-
293 K, 100 kPa
-
298 K, 101 kPa
-
293 K, 101 kPa
Pregunta 11
Pregunta
Fill in the blanks to complete the Ideal Gas Equation:
p[blank_start]V[blank_end] = [blank_start]n[blank_end]R[blank_start]T[blank_end]
Respuesta
-
V
-
n
-
T
Pregunta 12
Pregunta
In the Ideal Gas Equation, what is volume measured in?
Respuesta
-
dm^3
-
m^3
-
cm^3
-
litres (because Dr Matthews says that dm^3 aren't proper units)
Pregunta 13
Pregunta
A C-Cl bond is polar.
Respuesta
- True
- False
Pregunta 14
Pregunta
Fill in the blank:
The strength of London forces is primarily determined by the number of [blank_start]electrons[blank_end].
Respuesta
-
electrons
Pregunta 15
Pregunta
Fill in the blank:
The bond angle of the Cl-P-Cl bond in PCl_3 is [blank_start]107[blank_end] degrees.
Respuesta
-
107
Pregunta 16
Pregunta
What is the oxidation number of sulfur in Na₂S₄O₆?
Respuesta
-
+2.5
-
+3.5
-
+2
-
+4
-
+3
-
-2.5
-
-3
-
-4
-
-3.5
Pregunta 17
Pregunta
Sort the period 3 non-metals (silicon, phosphorus, sulfur, chlorine, argon) in order of increasing boiling points:
[blank_start]Argon[blank_end], [blank_start]chlorine[blank_end], [blank_start]phosphorus[blank_end], [blank_start]sulfur[blank_end], [blank_start]silicon[blank_end]
Respuesta
-
Argon
-
chlorine
-
phosphorus
-
sulfur
-
silicon
Pregunta 18
Pregunta
What colour flame do strontium ions make when burned?
Respuesta
-
Brick red
-
Crimson red
-
Apple green
Pregunta 19
Pregunta
A homogeneous catalyst is used in the contact process.
Respuesta
- True
- False
Pregunta 20
Pregunta
Hydrogen bonding only occurs when which atoms are bonded to hydrogen? Write them below in order of decreasing strength of the hydrogen bond (FULL words, not symbols):
[blank_start]Fluorine[blank_end], [blank_start]oxygen[blank_end], [blank_start]nitrogen[blank_end]
Respuesta
-
Fluorine
-
oxygen
-
nitrogen
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