Daylight Hours: 9 hours, 11 minutes (-8m 42s). The Sun's altitude in Tromsoe tromsÃ¸. Today the horizontal line signifies the, horizon the vertical lines show the times of sunrise and. Sunset altitude and heading are displayed in the box on the. right
Hydrogen cyanide (HCN), sometimes called prussic acid, is an organic compound with the chemical formula HCN. It is a colorless, extremely poisonous and flammable liquid that boils slightly above room temperature, at 25.6 Â°C (78.1 Â°F).
HCl gas is highly soluble in water. One volume of water at room. temperature can dissolve 452 volumes of HCl gas. 8. State, why HCl gas fumes in moist air. [1] Ans. The HCl gas being highly soluble in water, dissolves in the water. vapour present in air to form fine droplets of liquid hydrochloric. acid, which appear like fumes.