question_answer

    Translate the following statements into chemical equations and then balance them. Hydrogen gas combines with nitrogen to form ammonia. Hydrogen sulphide gas bums in air to give water and sulphur dioxide. Barium chloride reacts with aluminium sulphate to give aluminium chemical equations and then balance them chloride and a precipitate of barium sulphate. (d)          Potassium metal reacts with water to give potassium hydroxide and hydrogen gas.                 (e)          Hydrogen sulphide gas reacts with oxygen gas to form solid sulphur andliquid water.  [NCERT]

Answer:

                  (a)  N2(g) + 3H2(g) ® 2NH3(g)                 (b) 2H2S(g) + 302(g) ® 2H2O(l) + 2SO2(g)                 (c) 3BaCl2(aq) + Al2(SO4)3(aq) ® 2AlCl3(aq) +3BaSO4) ¯                 (d) 2K(s) + 2H2O(l) ® 2KOH(aq) + H2(g)                 (e) 2H2S(g) + O2(g) ® 2S(s) + 2H2O(l)