Metal + Dilute Acids = Salt + Hydrogen
Metal + Water = Metal Hydroxide + Hydrogen
More reactive metal will displace the less reactive metal from its salt solution.
Magnesium(More reactive metal) + Zinc sulphate (Less reactive salt ) = Magnesium sulphate (More reactive metal displaces the less reactive) + Zinc
Lead + Magnesium Sulphate = No reaction
(Less reactive metal cannot displace the more reactive metal)
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References:
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