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use by the maker or a small circumscribed group and containing an element of retention—the prolonged survival of tradition. folk art is the creative expression of the human... drawing drawing, the art or technique of producing images on a surface, usually paper, by means of marks, usually of ink, graphite...
tension: dyne/cm; ( )density: g/cm ; ( )flash point: °c; ( )enthalpy of vaporization: kj/mol; ( )boiling point: °c at mmhg; ( )vapour pressure: mmhg at °c. preparation of , , -tetramethylurea: this chemical can be prepared by diphenyl carbonate and dimethylamine. the reaction mixture is heated at °c...
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