(1)焙烧炉中,发生的主要反应为:
① 3C+2O2 2CO+CO2② Fe2O3+CO2FeO+CO2 ③ Fe3O4+CO3FeO+CO2
上述反应中的各物质,碳元素呈现
(2)酸浸槽中,FeO转化为FeSO4,加入的物质X是
(3)主反应器中,生成FeCO3的反应物为
同类型试题
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2