Reaction between two or more molecules forming a single product
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Carbon Neutral
No net change in the overall amount of Carbon Dioxide present in the atmosphere
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Catalyst
A substance which lowers the activation energy of a reaction by providing an alternate pathway for the reaction to take place which is lower in energy
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Collision Theory
Molecules must collide with at least the activation energy and the correct orientation
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Disproportionation
A reaction where an element in a compound is both reduced and oxidised
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Hydration
Addition of H20
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Hydrogenation
Addition where H2 joins across the double bond
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Hydrolysis
Breaking of a covalent bond with the addition of water
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Le Chatelier's Principle
When a change is made to a system at equilibrium, the position of the equilibrium will move to oppose the change
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Mean Bond Enthalpy
The average of several values for the bond dissociation enthalpy for a given bond
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Nucleophile
Electron pair donor
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Oxidation
Loss of electrons
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Electrophile
Electron pair acceptor
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Elimination
Removal of a simple molecule from adjacent atoms forming a double bond
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Enthalpy Change
The change in energy at a constant pressure
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First Law of Thermodynamics
Energy can neither be created nor destroyed,
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Free Radical
Particle containing an unpaired electron
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Hess' Law
The enthalpy change for a reaction is independent of the route taken
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Oxidising Agent
Electron acceptor that becomes reduced
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Rate of Reaction
Change in concentration of a substance per unit time
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Redox
Reaction involving reduction and oxidation
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Reducing Agent
Electron donor that becomes oxidised
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Reduction
Gain of electrons
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Standard Enthalpy of Combustion
The enthalpy change when 1 mol of a substance is burnt completely in oxygen under standard conditions with all products and reactant in their standard states
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Standard Enthalpy of Formation
The enthalpy change when 1 mol of a substance is formed from its elements under standard conditions with all products and reactant in their standard states
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Substitution
Replacement of an atoms or group of atoms by another one with the same valency
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Unsaturated
Contains at least one C=C bond
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Other cards in this set
Card 2
Front
Addition Reaction
Back
Reaction between two or more molecules forming a single product
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