Розставити коефіцієнти в схемах рівнянь: Fe+H,0–Fe3O4+H2; HCI+A1,03-AlCl3+H,0; Al+Bre-AIBr3; P,0;+H,0-H3PO4.
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Ответ:
3Fe+4h2o-Fe3o4+4h2
Al2o3+hcl-2AlCl3+3h2o
2Al+3Br2-2AlBr3
P2O5+3H2o-2H3Po4