Displacement Reaction

 A displacement reaction is a chemical reaction where one element or ion replaces another element in a compound. It's like when someone takes your place in line. Here's a simple explanation with 20 examples:


1. Zinc and Hydrochloric Acid: Zinc replaces hydrogen in hydrochloric acid to form zinc chloride and hydrogen gas. Zn + 2HCl -> ZnCl2 + H2


2. Copper and Silver Nitrate: Copper replaces silver in silver nitrate to produce copper nitrate and silver. Cu + 2AgNO3 -> Cu(NO3)2 + 2Ag


3. Magnesium and Iron Oxide: Magnesium replaces iron in iron oxide to create magnesium oxide and iron. Mg + Fe2O3 -> MgO + 2Fe


4. Sodium and Water: Sodium displaces hydrogen in water, forming sodium hydroxide and hydrogen gas. 2Na + 2H2O -> 2NaOH + H2


5. Aluminum and Hydrochloric Acid: Aluminum displaces hydrogen in hydrochloric acid, making aluminum chloride and hydrogen gas. 2Al + 6HCl -> 2AlCl3 + 3H2


6. Potassium and Water: Potassium reacts with water to form potassium hydroxide and hydrogen gas. 2K + 2H2O -> 2KOH + H2


7. Copper and Sulfuric Acid: Copper displaces hydrogen in sulfuric acid, producing copper sulfate and hydrogen gas. Cu + 2H2SO4 -> CuSO4 + 2H2O + SO2


8. Zinc and Copper Sulfate: Zinc replaces copper in copper sulfate, creating zinc sulfate and copper. Zn + CuSO4 -> ZnSO4 + Cu


9. Iron and Hydrochloric Acid: Iron displaces hydrogen in hydrochloric acid to form iron chloride and hydrogen gas. Fe + 2HCl -> FeCl2 + H2


10. Potassium and Bromine: Potassium displaces bromine from potassium bromide, forming potassium chloride and bromine gas. 2K + 2KBr -> 4KCl + Br2


11. Sodium and Chlorine Gas: Sodium reacts with chlorine gas to produce sodium chloride. 2Na + Cl2 -> 2NaCl


12. Magnesium and Hydrochloric Acid: Magnesium replaces hydrogen in hydrochloric acid to form magnesium chloride and hydrogen gas. Mg + 2HCl -> MgCl2 + H2


13. Aluminum and Bromine: Aluminum displaces bromine from aluminum bromide, forming aluminum chloride and bromine gas. 2Al + 3Br2 -> 2AlBr3


14. Calcium and Water: Calcium reacts with water to produce calcium hydroxide and hydrogen gas. Ca + 2H2O -> Ca(OH)2 + H2


15. Lead and Hydrochloric Acid: Lead replaces hydrogen in hydrochloric acid, making lead chloride and hydrogen gas. Pb + 2HCl -> PbCl2 + H2


16. Copper and Nitric Acid: Copper displaces hydrogen in nitric acid to form copper nitrate and hydrogen gas. Cu + 4HNO3 -> Cu(NO3)2 + 2H2O + 2NO2


17. Sodium and Oxygen: Sodium reacts with oxygen to produce sodium oxide. 4Na + O2 -> 2Na2O


18. Potassium and Sulfur: Potassium displaces sulfur from potassium sulfide, forming potassium oxide and sulfur. 2K + K2S -> 3K2O + S


19. Aluminum and Nitrogen Gas: Aluminum reacts with nitrogen gas to produce aluminum nitride. 2Al + 3N2 -> 2AlN


20. Copper and Silver Chloride: Copper displaces silver in silver chloride, creating copper chloride and silver. Cu + 2AgCl -> 2Ag + CuCl2


These examples should help you understand how displacement reactions work. In each case, one substance replaces another in a chemical compound, resulting in the formation of new products.

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