A.用碳酸氢钠治疗胃酸过多:CO+2H+=CO2↑+H2O |
B.用氨水吸收烟气中的二氧化硫:SO2+2OH-=SO+H2O |
C.把金属钠放入冷水中产生气体:Na+2H2O=Na++2OH-+H2↑ |
D.用氢氧化钠溶液可以溶解氢氧化铝固体:Al(OH)3+OH-=AlO+2H2O |
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