第31页 - 创新优化学案九年级化学沪教版

高炉

铁矿石

焦炭

石灰石

空气

$\ \text {C+O}_2\xlongequal[\ \ \ \ \ \ ]{点燃}\ \text {CO}_2$

$\ \text {2CO+O}_2\xlongequal[\ \ \ \ \ \ ]{点燃}2\ \text {CO}_2$

$\ \text {3CO+Fe}_2\ \text {O}_3\xlongequal[\ \ \ \ \ \ ]{高温}\ \text {2Fe+3CO}_2$

氧气和水

铁锈

$\mathrm{Fe_{2} O_{3}}·x \mathrm{H_2O} $

(更多请点击查看作业精灵详解)

防止金属腐蚀

回收利用废旧金属

合理有效地开采矿物

$\ \text {3Fe}+2\ \text {O}_2\xlongequal[\ \ \ \ \ \ ]{点燃}\ \text {Fe}_3\ \text {O}_4$

$4\ \text {Al}+3\ \text {O}_2\xlongequal[\ \ \ \ \ \ ]{}2\ \text {Al}_2\ \text {O}_3$

$2\ \text {Al+3H}_2\ \text {SO}_4\xlongequal[\ \ \ \ \ \ ]{}\ \text {Al}_2\ \text {(SO}_4)_3+3\ \text {H}_2↑$

$\ \text {Zn+H}_2\ \text {SO}_4\xlongequal[\ \ \ \ \ \ ]{}\ \text {ZnSO}_4+\ \text {H}_2↑$

$\ \text {Mg+2HCl}\xlongequal[\ \ \ \ \ \ ]{}\ \text {MgCl}_2+\ \text {H}_2↑$

$\ \text {Fe+H}_2\ \text {SO}_4\xlongequal[\ \ \ \ \ \ ]{}\ \text {FeSO}_4+\ \text {H}_2↑$