December 2021 0 16 Report
Какое из веществ соответствует реакции обмена  А) Fe+H2SO4=FeSo4+H2
Б) Na2O+2HCL=2Nacl+H2O
В)Ca+2H2O=Ca(OH)2+H2
Г) 2AL(OH)3=AL2O3+3H2O
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