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Integral number of protons in the nucleus, defines the identity of element.
 

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Explosive limits

The range of concentrations over which a flammable vapour mixed with proper ratios of air will ignite or explode if a source of ignitions is provided.

Reaction Ratio

The relative amounts of reactants and products involved in a reaction, maybe the ratio of moles. millimoles, or masses.

 

Surface Tension

It is the force in dynes acting along the surface of the liquid 1cm in length and perpendicular to it.

xylose

A colorless, crystalline pentose sugar, C5H10O5, derived from xylan, straw, corncobs, etc., by treating with heated dilute sulfuric acid, and dehydrating to furfural if stronger acid is used.

Electrolytic Conduction

Conduction of electrical current by ions through a solution or pure liquid.

Flux

A substance added to react with the charge, or a product of its reduction, in metallurgy, usually added to lower a melting point.

Polymerization

The combination of many small molecules to form large molecules.

Photon

A packet of light or electromagnetic radiation, also called quantum of light.

 

Base

A substance that produces OH (aq) ions in aqueous solution. Strong soluable bases are soluble in water and are completely dissociated. Weak bases ionize only slightly.

Meniscus

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