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Ses archives (232) Toutes les couleurs Rouge, bleu, jaune, violet, orange, noir, bla ... Η τέχνη είναι κατά κύριο λόγο μια γλώσσα Η τέχνη είναι κατά κύριο λόγο μια γλώσσα Λόγο ... ხელოვნება, პირველ რიგში ენა ხელოვნება, პირველ რიგში ენა სიტყვა სახით, მატ ... CELF yn bennaf promotion CELF yw iaith yn bennaf yw iaith Gair y deunydd ffurf ...
Acid Hydrogen consists of sharp (they can offer one or more H + to a database (Acid + Base = Salt + H2O + Calorie) Strong acids easily protons: Example: HCl, H2SO4 and HNO3 liver. Alloy obtained by incorporation of the body elements (metal or not) to a base metal. EX: Allotropy Consists of various countries in a body that can stand. example of allotropic body: carbon, bauxite, alumina ... Amalgam alloy of mercury ( Hg) with another metal. Example: Amphoteric both the acidic or basic properties. Example: Al (OH) 3, Zn (OH) 2, Pb (OH) 2. (Synonym: Not important) Base fabric with acid, a salt product. promotion (The Basics catch the proton H + contains promotion OH). (Acid + Base = Salt + H2O + Calorie) Strong bases Example: KOH, LiOH and NaOH. Elasticity property of certain metals to provide to allow for stretching to the boy. (The most malleable metal is gold (Au)) Hardness the resistance of a metal face to the penetration of a foreign body. Descending the harder softer: iron (Fe), copper (Cu), zinc (Zn), aluminum (Al), tin (Sn), lead (Pb). Harding actions promotion of the deformed a metal beyond the elastic limit. (The annealing destroys the effect of the strain hardening) Electrolysis Chemical decomposition promotion of certain substances (molten or in solution) under the action of an electric current. Electrolysis, the positive ion or cation (+ ion) to the cathode move. Tansdis that the anion or negative ion (ion) focuses to the anode. strong electrolyte a body highly electrically conductive. Example: Suspended promotion or release screening method (elimination of the matrix). After spraying promotion ore (especially sulphides of Zn, Pb, Cu), mixed with oil; pay a tank with water and an air stream, the particles float oiled, the gangue fall bottom of the tank. gangue envelope of rock gems (see ore) graters heating the ore in the presence of water without melting, to the oxidized. Timetable of sulphides . Example: Timetable to death: ZnS + 3/2 O2 -> SO2 + ZnO + (100 C) meshing Moderate: ZnS + 2 O2 -> ZnSO4 + (100 C) Partial BBQ: 3CuS + 3 / 2 O2 -> 2SO2 + + Cu2S 2Cu2O Hydrolysis decomposition of a body of water. Colour indicators substances that indicate a clear change in the color of the nature of the environment in which they are immersed. Example: BBT (bromothymol blue) : acid yellow, blue in alkaline medium. - Helianthine (methyl orange) pink in acid yellow promotion in alkaline medium. - Phthalein: colorless promotion in an acid medium, in an alkaline medium red. (Helianthus) : red in acid, blue in alkaline medium. Levigating method refined by them to submit promotion to the action of flowing water (the ore deposits at the bottom of ore (removal of the reef), the matrix driven by water) Malleability ability of a metal strip allow themselves promotion to thin or pounding. promotion in descending order of most to least malleable: gold (Au), silver (Ag), aluminum (Al), tin (Sn), copper (Cu), zinc (Zn ), iron (Fe). Ore natural metal compound where the industry can be a metal extracted. Often accompanied by impurities (earthly) called reef. Molarity concentration of a solute. This is the number of moles of a substance that in a substance which is a B. (For a monoacid: promotion molarity = normality For a dihydrogen 1 2 = molarity normality (ie, normality = 1/2 molre), ...) Normality concentration of a dissolved substance in comparison to the normal solution. normality of a solution of acid is equal to the number of moles of H + ions solution. For dihydrogen: 1 normality = half molarity. promotion Oxidant a body owned by oxidizing (to pass a state oxide) Example of oxidants: O 2, CuO, Cl2 + H2O, NaOH. Amphoteric oxide Example: ZnO, PBO; Passivity Make a metal resistant to corrosion by Su