Ответы
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1. 2Al + 3H2SO4(разб. ) = Al2(SO4)3 + 3H2
2.2Al + 2NaOH + 6H2O = 2Na[Al(OH)4] + 3H2
3. Fe2O3+2Al=Al2O3+2Fe
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1. 2Al + 3H2SO4(разб. ) = Al2(SO4)3 + 3H2
2.2Al + 2NaOH + 6H2O = 2Na[Al(OH)4] + 3H2
3. Fe2O3+2Al=Al2O3+2Fe