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How metals and non metals react?

Answer» \t1Reaction with OxygenMetal + Oxygen→Metal oxide 4Na(s) + O2(g) →2Na2O(s) 4Al(s) + 3O2(g) →2Al2O3 Metals form basic oxides Zn and Al form amphoteric oxides (they show the properties of both acidic and basic oxides) Most of the metal oxides are insoluble in water Some of them dissolve to form Alkali Na2O(s) + H2O(l) →2NaOH(aq)Non-metal + Oxygen →Non-metal oxide C + O2\xa0→CO2 S + O2\xa0→SO2 Non-metals form acidic oxides CO and HO2O are neutral oxides(they are neither acidic nor basic in nature) Non- metal oxides are soluble in water They dissolve in water to form acids SO2\xa0+ H2O →H2SO32Reaction with waterMetals react with water to form metal oxides or metal hydroxide and H2 gas is released. 2Na(s) + 2H2O(l) →2NaOH + H2(g) + heatNon-metals do not react with water, steam to evolve hydrogen gas. Because Non-metals cannot give electrons to hydrogen in water so that it can be released as H2\xa0gas.3Reaction with dilute AcidsMetal + Acid →Metal salt + HydrogenHCl Mg(s) + 2HCl(aq)→ MgCl2(aq) + H2(g)H2SO4 2Na(s) + H2SO2→ Na2SO4(aq) +H2(g)HNO3 Metal + HNO3→\xa0H2\xa0gas is not displaced.Reason-\xa0HNO3\xa0is strong oxidizing agent.Non-metals do not react with acids to release H2\xa0gas Reason-\xa0Non-metals cannot loose electrons and give it to Hydrogen ions of acids so that the gas is released. Mn + 2HNO3→ Mn(NO3)2\xa0+ H2 H2\xa0gas from HNO34Reaction with salt solutionsWhen metals react with salt solution, more reactive metal will displace a less reactive metal from its salt solution. CuSO4(aq) + n(s)→\xa0ZnSO4(aq) + Cu(s)When non-metals react with salt solution, more reactive non-metal will displace a less reactive non-metal from its salt solution. 2NaBr(aq) + Cl2(g)→ 2NaCl(aq) + Br2(aq)\t


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