Ответ:
1)Hg+S=HgS 2)CuSO4+Fe=FeSO4+Cu 3)Cr2O3+3AI=2Cr+AI2O3 4)LiON+HCI=LiCI+H2O
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Ответ:
1)Hg+S=HgS 2)CuSO4+Fe=FeSO4+Cu 3)Cr2O3+3AI=2Cr+AI2O3 4)LiON+HCI=LiCI+H2O