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960 terms · page 11 of 40
Degree of Hydrolysis
The fraction of a salt's ions that have reacted with water at equilibrium.
Acids, Bases & SaltsDegree of Ionisation
The fraction of dissolved electrolyte molecules that have broken into ions at equilibrium.
Biochemistry & Polymer ChemistryDegree of Polymerisation
The number of monomer units in an average polymer chain.
Stoichiometry & Chemical ReactionsDehydration Reaction
A reaction in which water is removed from a single molecule, generally producing an unsaturated or condensed product.
Foundations of ChemistryDeliquescence
The property of a solid that absorbs enough water vapour from the air to dissolve completely in the water it takes up.
Chemical Bonding & Molecular StructureDelocalisation
The spreading of electrons over three or more atoms rather than their confinement between two.
Biochemistry & Polymer ChemistryDenaturation
The loss of a protein's native three-dimensional structure without breaking its peptide bonds.
Foundations of ChemistryDensity
The mass of a substance contained in a unit volume, a characteristic intensive property of each material.
Inorganic & Coordination ChemistryDenticity
The number of donor atoms a single ligand uses to bind to one metal centre.
States of Matter & Gas LawsDeposition
The direct conversion of a vapour into a solid without an intermediate liquid phase.
Atomic Structure & PeriodicityDiagonal Relationship
The similarity in properties between an element of period 2 and the element one place to its lower right in period 3.
Atomic Structure & PeriodicityDiamagnetism
Weak repulsion from a magnetic field, shown by substances in which all electrons are spin-paired.
Organic ChemistryDiastereomer
A stereoisomer that is not a mirror image of the compound with which it is compared.
States of Matter & Gas LawsDiffusion
The spontaneous spreading of one substance through another as a result of random molecular motion.
Solutions & Colligative PropertiesDilution
The process of reducing a solution's concentration by adding more solvent, leaving the amount of solute unchanged.
Foundations of ChemistryDimensional Analysis
A calculation method that tracks and cancels units through a chain of conversion factors to reach the required quantity.
Chemical Bonding & Molecular StructureDipole Moment
The vector measure of the separation of positive and negative charge in a bond or molecule.
Chemical Bonding & Molecular StructureDipole–Dipole Interaction
The electrostatic attraction between the positive end of one polar molecule and the negative end of another.
Acids, Bases & SaltsDiprotic Acid
An acid that can donate two protons per molecule.
Biochemistry & Polymer ChemistryDisaccharide
A carbohydrate formed when two monosaccharide units join through a glycosidic bond.
Stoichiometry & Chemical ReactionsDisproportionation Reaction
A redox reaction in which a single species is simultaneously oxidised and reduced.
Solutions & Colligative PropertiesDissociation
The breaking apart of a solute into two or more particles when it dissolves, increasing the effective particle count.
Chemical EquilibriumDissociation Constant
The equilibrium constant for the breaking apart of a compound or complex into smaller species.
Solutions & Colligative PropertiesDissolution
The process by which a solute disperses into a solvent to form a solution.