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Fuel cell in which hydrogen is the fuel (reducing agent) and oxygen is the oxidizing agent.

 

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xylan

The pentosan occurring in woody tissue that hydrolyzes to xylose: used as a source of furfural.

Delocalization

Of electrons, refers to bonding electrons that are distributed among more than two atoms that are bonded together, occurs in species that exhibit resonance.
The formation of a set of molecular orbitals that extend over more than two atoms, important in species that valence bond theory describes in terms of resonance.

Endothermic

Describes processes that absorb heat energy.

Where is ozone used?

Ozone is widely used in various areas of our life. It is used in medicine, in industry, in everyday life.

Aufbau ('building up') Principle

Describes the order in which electrons fill orbitals in atoms.

Alpha Particles

A helium nucleus.

Nonpolar Bond

Covalent bond in which electron density is symmetrically distributed.

Manometer

A two-armed barometer.

Derivative

A compound that can be imagined to arise from a partent compound by replacement of one atom with another atom or group of atoms. Used extensively in orgainic chemistry to assist in identifying compounds.

Fluids

Substances that flow freely, gases and liquids.