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The enthalpy change for a reaction is the same whether it occurs in one step or a series of steps.

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Molarity

Number of moles of solute per litre of solution.

Gel

Colloidal suspension of a solid dispersed in a liquid, a semirigid solid.

Hydride

A binary compound of hydrogen.

 

Excited State

Any state other than the ground state of an atom or molecule.

Homogeneous Catalyst

A catalyst that exists in the same phase (solid, liquid or gas) as the reactants. The process is called Homogeneous Catalysis.

High Spin Complex

Crystal field designation for an outer orbital complex, all t2g and eg orbitals are singly occupied before any pairing occurs.

Nuclear Reaction

Involves a change in the composition of a nucleus and can evolve or absorb an extraordinarily large amount of energy.

Lewis Dot Formula (Electron Dot Formula)

Representation of the core of a molecule, ion or formula unit by showing atomic symbols and only outer shell electrons.

Homogeneous Equilibria

Equilibria involving only one species in a single phase. For example, all gases, all liquids or all solids.

Voltage

Potential difference between two electrodes, a measure of the chemical potential for a redox reaction to occur.