A.将碳酸氢钙溶液与过量的澄清石灰水混合: +Ca2++OH-=CaCO3↓+H2O |
B.将少量NO2通入NaOH溶液:2NO2+2OH-= + +H2O |
C.将少量SO2通入NaClO溶液:SO2+H2O+2ClO-= +2HClO |
D.向氨水中滴入少量硝酸银溶液:Ag++2NH3·H2O= +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