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2. Write equations for the reactions of:(1) iron with steam(ii) calcium with water(iii) potassium with water |
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Answer» An equation for the reaction of: a) iron with steam When a metal REACTS with steam then the products formed are metal oxide and hydrogen GAS. Metal + steam Metal oxide + Hydrogen When red hot iron reacts with steam to form iron(11,111) oxide and hydrogen. Fe304 (s) 3Fe(s) + 4H2O(g) steam + 4H2(g) B) calcium with water: When a metal reacts with water( cold water or hot water) then the products formed are metal hydroxide and hydrogen gas. Metal hydroxide + Metal + steam Hydrogen Calcium reacts with cold water to form calcium hydroxide and hydrogen gas: Ca(s)+ 2H2O(1) ----- H2(g) Ca(OH)2(aq) + c) potassium with water. Potassium reacts violently with cold water to form potassium hydroxide and hydrogen gas: 2K(s)+ 2H2O(1) --------> 2KOH(aq) + H2(g) + HEAT. In this reaction so much heat is produced get hydrogen gas formed catches fire and BURNS explosively. HOPE THIS HELPS...... |
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