AQA Chemistry Paper 2 Exam With
Detailed Questions And Correct
Answers||Latest Exam
2026/2027||Already Graded A+
rate of reaction -ANSWER The speed at which a chemical reaction happens.
reactant -ANSWER The substances that are present before a chemical change takes
place.
product -ANSWER A substance produced by a chemical reaction
collision theory -ANSWER states that atoms, ions, and molecules must collide in order to
react.
entropy -ANSWER a measure of the degree of disorder in a system
pressure -ANSWER a measure of force exerted per unit area; in chemistry, most
commonly the force exerted by gas molecules as they strike the surfaces around them
catalyst -ANSWER A substance that speeds a chemical reaction by lowering the
activation energy of the reaction.
climate change -ANSWER recent changes in the Earth's climate; evidence suggests that
this is primarily due to human influence, including the increased release of greenhouse
gases
red litmus -ANSWER Turns blue in alkaline solution
blue litmus -ANSWER Turns red in acidic solution
hydrated -ANSWER A crystalline compound containing water molecules
anhydrous -ANSWER Pertaining to a compound from which the water of crystallisation
has been removed.
dynamic equilibrium -ANSWER The state in which rates of opposing processes are
equal
closed system -ANSWER energy can be transferred to the surroundings but matter
cannot
, Le Chatelier's Principle -ANSWER An equilibrium tends to move to reverse a change
you have made. (As in, add more reactant and it becomes more product favoured)
C9 -ANSWER
hydrocarbons -ANSWER organic compounds that contain only hydrogen and carbon
crude oil -ANSWER petroleum as it comes out of the ground and before it has been
refined or processed into useful products;
A naturally occurring mixture of many hydrocarbons.
fractions -ANSWER groups in fractional distillation
alkanes -ANSWER saturated hydrocarbons that contain single bonds between carbon
atoms
saturated hydrocarbons -ANSWER A hydrocarbon containing only single carbon-carbon
bonds.
methane -ANSWER CH₄
ethane -ANSWER C₂H₆
propane -ANSWER C₃H₈
butane -ANSWER C₄H₁₀
meth- -ANSWER 1 carbon atom
eth- -ANSWER 2 carbon atoms
prop- -ANSWER 3 carbon atoms
but- -ANSWER 4 carbon atoms
flammable -ANSWER capable of being easily set on fire; combustible
viscosity -ANSWER a measure of the resistance of a liquid to flow
volatility -ANSWER a measure of how readily a substance vaporises
complete combustion -ANSWER Excess oxygen is required, and it produces CO₂(g) +
H₂O(g).
incomplete combustion -ANSWER Limited oxygen is available, and it produces CO₂ (g)
+ CO(g) + C(s) + H₂O(g)
Detailed Questions And Correct
Answers||Latest Exam
2026/2027||Already Graded A+
rate of reaction -ANSWER The speed at which a chemical reaction happens.
reactant -ANSWER The substances that are present before a chemical change takes
place.
product -ANSWER A substance produced by a chemical reaction
collision theory -ANSWER states that atoms, ions, and molecules must collide in order to
react.
entropy -ANSWER a measure of the degree of disorder in a system
pressure -ANSWER a measure of force exerted per unit area; in chemistry, most
commonly the force exerted by gas molecules as they strike the surfaces around them
catalyst -ANSWER A substance that speeds a chemical reaction by lowering the
activation energy of the reaction.
climate change -ANSWER recent changes in the Earth's climate; evidence suggests that
this is primarily due to human influence, including the increased release of greenhouse
gases
red litmus -ANSWER Turns blue in alkaline solution
blue litmus -ANSWER Turns red in acidic solution
hydrated -ANSWER A crystalline compound containing water molecules
anhydrous -ANSWER Pertaining to a compound from which the water of crystallisation
has been removed.
dynamic equilibrium -ANSWER The state in which rates of opposing processes are
equal
closed system -ANSWER energy can be transferred to the surroundings but matter
cannot
, Le Chatelier's Principle -ANSWER An equilibrium tends to move to reverse a change
you have made. (As in, add more reactant and it becomes more product favoured)
C9 -ANSWER
hydrocarbons -ANSWER organic compounds that contain only hydrogen and carbon
crude oil -ANSWER petroleum as it comes out of the ground and before it has been
refined or processed into useful products;
A naturally occurring mixture of many hydrocarbons.
fractions -ANSWER groups in fractional distillation
alkanes -ANSWER saturated hydrocarbons that contain single bonds between carbon
atoms
saturated hydrocarbons -ANSWER A hydrocarbon containing only single carbon-carbon
bonds.
methane -ANSWER CH₄
ethane -ANSWER C₂H₆
propane -ANSWER C₃H₈
butane -ANSWER C₄H₁₀
meth- -ANSWER 1 carbon atom
eth- -ANSWER 2 carbon atoms
prop- -ANSWER 3 carbon atoms
but- -ANSWER 4 carbon atoms
flammable -ANSWER capable of being easily set on fire; combustible
viscosity -ANSWER a measure of the resistance of a liquid to flow
volatility -ANSWER a measure of how readily a substance vaporises
complete combustion -ANSWER Excess oxygen is required, and it produces CO₂(g) +
H₂O(g).
incomplete combustion -ANSWER Limited oxygen is available, and it produces CO₂ (g)
+ CO(g) + C(s) + H₂O(g)
