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chirita sandu

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  1. PROIECT CHIMIE CHIMIE OXIZII

  2. OXIZII METALICI SUNT OXIZI IN A CAROR COMPOZITIE INTRA ATOMI DE OXIGEN SI ATOMI DE METAL. EX:CAO, AL2O3, MGO, NA2O, BAO, K2O, ZNO ETC. -SE MAI NUMESC OXIZI BAZICI, DEOARECE IN REACTIE CU APA , FORMEAZA BAZE. CAO+H2O->CA(OH)2(STINGEREAVARULUI)

  3. SFIRSIT ACEST A FOST CREAT DE: CHIRITA SANDU

  4. EXEMPLE DE OXIZI: Success is no accident. It is hard work. Education is the most powerful weapon you can use to change the world.. Your future is created by what you do today not tomorrow.

  5. Proprietăţile fizice ale oxizilor: 1.Starea de agregare: La temperaturaobişnuităoxiziisunt: substanţesolide: oxiziimetalici substanţegazoase: ex: CO2, SO2, NO2 substanţelichide, foarterar: SO3

  6. Oxizii nemetalici Sunt oxizi in a caror compozitie intra atomi de oxigen si atomi de nemetal. Ex: CO, SO2, CO2, SO3, Cl2O3, SiO2, F2O,etc Se mai numesc oxizi acizi, deoarece in reactie cu apa , formeaza acizi. CO2 + H2O -> H2CO3(obtinereasifonului)

  7. CLASIFICAREA OXIZILOR DUPA COMPOZITIE OXIZI METALICI OXIZI NEMETALICI

  8. FORMULA GENERALA E O X 2 => E2On E – element din Sistemul Periodic O – oxigen x – valentaelementului 2 – valentaoxigenului

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