Hardness of Solid Substances - Grinding Magnesium
Magnesium metal is not easily ground or crushed.
magnesium
Reaction of magnesium with carbon dioxide
The reaction of magnesium with carbon dioxide (dry ice) is demonstrated. Despite the absence of air, the magnesium continues to glow.
Hydrogen and chlorine cannon
Hydrogen and chlorine gases can be mixed together without reacting, but when the mixture is struck with bright light, it reacts explosively.
Hydrogen and chlorine cannon animation
This brief animation illustrates the chain reaction that occurs when hydrogen and chlorine gases react.