AQA A LEVEL CHEMISTRY PAPER 2 UPDATED ACTUAL Questions and CORRECT Answers
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Course
AQA A LEVEL CHEMISTRY
Institution
AQA A LEVEL CHEMISTRY
AQA A LEVEL CHEMISTRY PAPER 2
UPDATED ACTUAL Questions and
CORRECT Answers
Relative atomic mass (Ar) - CORRECT ANSWER- Average mass of an atom compared
with one twelth of the mass of an atom of carbon 12
Electronegativity - CORRECT ANSWER- Power of an atom to attract the pair of
electrons ...
AQA A LEVEL CHEMISTRY PAPER 2
UPDATED ACTUAL Questions and
CORRECT Answers
Relative atomic mass (Ar) - CORRECT ANSWER✔✔- Average mass of an atom compared
with one twelth of the mass of an atom of carbon 12
Electronegativity - CORRECT ANSWER✔✔- Power of an atom to attract the pair of
electrons in a covalent bond
Standard enthalpy of combustion - CORRECT ANSWER✔✔- Enthalpy change when 1
mole of a substance burns completely in oxygen under standard conditions with all reactants
and products being in their standard state
Standard enthalpy of formation - CORRECT ANSWER✔✔- Enthalpy change when 1 mole
of a compound is formed from it's elements under standard conditions in their standard states
Mean bond enthalpy - CORRECT ANSWER✔✔- The average energy needed to break a
certain type of bond over a range of compounds
Activation energy - CORRECT ANSWER✔✔- Minimum energy required for colliding
molecules to react
Maxwell-Boltzmann distribution x and y axes - CORRECT ANSWER✔✔- x: Energy
y: fraction/number of molecules
What happens to the Maxwell-Boltzmann curve when temperature increases - CORRECT
ANSWER✔✔- Moves down and to the right
Rate of reaction - CORRECT ANSWER✔✔- Rate at which product formed/reactant used up
, Order of reaction - CORRECT ANSWER✔✔- Power to which the concentration of a species
is raised in the rate equation
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