A.图①:蜡烛在装满空气的密闭容器中燃烧,CO2体积分数的变化 |
B.图②:向等质量,等浓度的盐酸中不断加入Na2CO3和NaHCO3溶液,产生气体质量的变化 |
C.图③:在高温下,向Fe2O3固体中通入CO,固体质量的变化 |
D.图④:在恒温条件下,将饱和的NaCl溶液蒸发适量水,溶液中溶质质量分数的变化 |
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