A.NH4HCO3溶液与过量NaOH溶液反应:NH4+ + OH_= NH3↑+2H2O |
B.向FeBr2溶液中通入Cl2,当n(FeBr2)=n(Cl2)时:2Fe2++4Br−+3Cl2=2Fe3++2Br2+6Cl− |
C.向FeI2溶液中通入Cl2,当n(FeI2):n(Cl2)=1:1时: 2I−+Cl2=I2+2Cl− |
D.向烧碱溶液中通入CO2,当n(NaOH):n(CO2)=3:2时: OH−+CO2=HCO3− |
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