A.若盐酸和醋酸初始pH相同,产生相同物质的量的(石灰石均有剩余),醋酸时间更短 |
B.若盐酸和醋酸初始pH相同,加入石灰石后盐酸产生更快 |
C.若盐酸和醋酸初始物质的量浓度相同,充分反应后,盐酸产生的多 |
D.若盐酸和醋酸初始物质的量浓度相同,充分反应后,醋酸产生的多 |
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