Oxygen - Relights a glowing splint, Hydrogen - When a lit split is placed in the gas, it makes a squeaky pop sound, Carbon dioxide - Bubble the gas through limewater, turns cloudy, Chlorine - Hold damp, blue litmus paper in the gas. Bleaches white. ,

排行榜

视觉风格

选项

切换模板

恢复自动保存: