ICSE 2005 : SCIENCE Paper 2 (Chemistry) - Question 6 (c) Answer the following.

SCIENCE

Paper 2 (Chemistry) - 2005

(One hour and a half)

Question 6
(c)

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86.
(i) Write the equations for the following reactions which result in the formation of Ammonia:-
(1) A mixture of Ammonium chloride and slaked Lime is heated.

87.
(2) Aluminium nitride and water.

88.
(ii) Calculate the percentage of Nitrogen in Aluminium nitride.
(Al = 27, N = 14)
(Type in ONLY the numerical value of the percentage. Round it off to two decimal places.)

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