ce sunt bazele?, sunt substante care se dizolvă in solutie apoase, sunt substante gazoase, sunt gaze nobile, un metal, ce culoare au ele in mediul acid, albastru, incolor, galben, roz,rosu, Care dinte următoarele substanțe sunt baze?, H2SO4, Mg(OH)2, CO2, NaCl, Denumirea populară a hidroxidului de calciu Ca(OH)2, soda caustica, sare de lamâe, piatra vanata, var stins

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