(1)H2SO4→CuSO4时,所需要的另一种反应物是_____.
(2)若X为氢氧化钠,它与H2SO4反应的化学方程式为____,所属基本反应类型是_____.
(3)若X为金属单质,请按要求将(H)、Cu、X 三种符号填写________(金属活动性由强到弱)
(4)若X为一种盐,则X可以是_____(写一种物质名称)
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