Take some silver bromide in two dry watch glasses. Wrap one of them with a black paper. Keep both of them in sunlight for some time.
• What do you observe?
• In which watch glass does the colour of silver bromide change?
• Which form of energy was responsible for this chemical change?
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Explanation:
The glass which is not covered with black paper contains silver bromide of different color. Solar energy is responsible for this chemical changes. Silver is very reactive type of metal. Silver bromide in the presence of sunlight changes into BLACK color silver and bromine gas comes out.
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which form of energy is responsible for this chemical change
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