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Surfaces upon which oxidation and reduction half-reactions, occur in electrochemical cells.

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Displacement Reactions

Reactions in which one element displaces another from a compound.

 

Spectrum

Display of component wavelengths (colours) of electromagnetic radiation.

Absolute Entropy (of a substance)

The increase in the entropy of a substance as it goes from a perfectly ordered crystalline form at 0 °K (where its entropy is zero) to the temperature in question.

Entropy is a measure of the “dilution” of thermal energy.

Phosphoric Acid

H3P04, Colorless liquid or rhombic crystals, decomposes before it will boil. Used mostly in the metal etchant. Used in cleaning operations to remove encrusted surface matter and mineral scale found on metal equipment such as boilers and steam producing equipment. Also used to brighten metals and remove rust.

Meniscus

The shape assumed by the surface of a liquid in a cylindrical container.

Electronic Transition

The transfer of an electron from one energy level to another.

Second Law of Thermodynamics

The universe tends toward a state of greater diorder in spontaneous processes.

Bronsted-Lowry Acid

A proton donor.

Rate of Reaction

Change in the concentration of a reactant or product per unit time.

Do you know: some mosquitoes bite people because of their clothes

If you have ever been bitten by a mosquito, someone nearby surely gave you an explanation of why the nasty insect decided to spoil your day. Maybe they told you that you smelt good, or you had a certain type of blood or that in that shirt you looked like a potential victim.