September 2021 1 10 Report
Со щелочами взаимодействует каждое из веществ.1)al2o3,zn,k3[al(oh)6];2)beo,cr2o3,cl2; 3 )zn(oh) 2,al,k2 [zn(oh) 4]; 4)cr(oh)3;be(oh) 2;be
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