Saved Bookmarks
| 1. |
2. Write equations for the reactions of: (1) iron with steam(ii) calcium with water(iii) potassium with water |
|
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) + 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...... |
|