(1)将下列物质按要求进行分类:
① ②
③
④
⑤
⑥
⑦
⑧
⑨
⑩
(2)将下列物质按要求进行分类:
①和
②一氯甲烷和二氯甲烷 ③正丁烷和异丁烷 ④
和
⑤
和
⑥氕、氘和氚⑦
和
⑧
和
⑨红磷和白磷⑩
和
(3)请按要求作答:



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

