A.Na与CuSO4溶液的反应:2Na+Cu2+=Cu+2Na+ |
B.CuSO4溶液与Ba(OH)2溶液反应:Cu2++2OH-=Cu(OH)2 |
C.NaHCO3溶液与NaOH溶液混合:HCO+OH-=H2O+CO |
D.Ca(ClO)2溶液中通入少量CO2:Ca(ClO)2+CO2+H2O=CaCO3+2H++2ClO- |
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