Chemistry Key terms

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  • Created by: hollygw
  • Created on: 06-09-22 06:45
Co-ordinate bond
Pair of electrons donated by one atom
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Disproportionation
A redox reaction where the oxidation number of some atoms of an element increase and some of the same decrease
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Dynamic equilibrium
Forward and backward reaction occur at the same rate so there is no change in concentrations
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Electrophile
Electron-deficient substance that attacks electro-rich reactants in an organic reaction
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Enthalpy change
A measure of heat energy given out or taken in when a chemical or physical change occurs at constant pressure
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Enthalpy of formation
The standard enthalpy of formation is defined as the change in enthalpy when one mole of a substance is formed from its pure elements under standard conditions
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Enthalpy of combustion
The enthalpy of combustion of a substance is defined as the heat energy given out when one mole of a substance burns completely in oxygen under standard conditions.
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Ionisation energy
Energy required to remove one mole of electrons from a mole of gaseous atoms/ions
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Nucleophile (1)
Ion or group of negatively charged atoms which attack electron-deficient reactants in organic reactions and donate a pair of electrons
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Other cards in this set

Card 2

Front

Disproportionation

Back

A redox reaction where the oxidation number of some atoms of an element increase and some of the same decrease

Card 3

Front

Dynamic equilibrium

Back

Preview of the front of card 3

Card 4

Front

Electrophile

Back

Preview of the front of card 4

Card 5

Front

Enthalpy change

Back

Preview of the front of card 5
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