Science, asked by msmithun189, 8 months ago

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Answered by Anonymous

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6: CaO

8: Ferrous sulphate undergoes decomposition, that is it breaks into two or more than two products on absorption of energy. Two gases are evolved namely sulphur dioxide and sulphur trioxide and a solid ferric oxide which remains as such and is called as residue.

,9: Magnesium ribbon must be cleaned before burning in air so that the layer of magnesium oxide (which is formed due to reaction of magnesium with air) can be removed in order to get the desired chemical reaction.

10: Also, silver bromide is used for Black and white photography. Equation : 2AgBr --sunlight---> 2Ag + Br2. This type of reaction is called photo chemical decomposition reaction.

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