回答下列问题:
(1)在95 ℃“溶浸”硼镁矿粉,产生的气体在“吸收”中反应的化学方程式为
(2)“滤渣1”的主要成分有
(3)根据H3BO3的解离反应:H3BO3+H2OH++B(OH)−4,Ka=5.81×10−10,可判断H3BO3是
(4)在“沉镁”中生成Mg(OH)2·MgCO3沉淀的离子方程式为
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