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Clasifica urmatoarele substante in: OXIZI, ACIZI, BAZE, SARURI
CuO, CO2, CuCl2, H2O, AgCl2, Cu(NO3)2, NaOH, Cu(OH)2, NaCl, Na2SO4, BaSO4, HCl, H2CO3, CaCO3, CuCO3, AgNO3, H2SO4, BaCl2, Ca(OH)2