Loss of mass of marble due to reaction with nitric acid
The effect of nitric acid on marble chips is demonstrated.
reactions
Reaction of sodium and chlorine
A small piece of sodium metal is placed in a flask containing chlorine gas. Initially, no reaction is observed, but addition of a drop of water to the sodium initiates a vigorous reaction. Includes close-up replay of reaction.
Reaction of aluminum with iodine
Powdered aluminum and powdered iodine are mixed together. Adding drops of water to the mixture initiates a reaction.
Reaction of manganese with iodine
Powdered manganese and powdered iodine are mixed together. Adding drops of water to the mixture initiates a reaction.
Reaction of iron with iodine
Powdered iron and powdered iodine are mixed together. Adding drops of water to the mixture initiates a reaction.
Reaction of nickel with iodine
Powdered nickel and powdered iodine are mixed together. Adding drops of water to the mixture fails to initiate a reaction.
Reaction of zinc with iodine
Granular zinc and powdered iodine are mixed together. Adding drops of water to the mixture initiates a reaction.
Zinc iodine reaction
Powdered zinc and solid iodine are mixed and no reaction is observed. Adding water to the mixture initiates a reaction.
Aluminum iodine reaction
Powdered aluminum and solid iodine are mixed and no reaction is observed. Adding water to the mixture initiates a reaction.
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.