Some Basic Concepts of Chemistry

Balance the following skeleton equation: - Wired Faculty

Question

Balance the following skeleton equation:

$NH subscript 3 NI subscript 3 space rightwards arrow space space straight N subscript 2 plus straight I subscript 2 plus NH subscript 4 straight I$

Solution

(i) Skeleton equation is
$NH subscript 3 NI subscript 3 space space space rightwards arrow space space space space straight N subscript 2 plus straight I subscript 2 plus NH subscript 4 straight I$
(ii) Change the equation into atomic form.
$NH subscript 3 NI subscript 3 space rightwards arrow space straight N plus straight I plus NH subscript 4 straight I$
(iii) To balance H atoms, multiply NH₃NI₃ by 4 and NH₄I by 3.
$4 NH subscript 3 NI subscript 3 space space rightwards arrow space space space space straight N plus straight I plus 3 NH subscript 4 straight I$
(iv) To balance I atoms, multiply I by 9 on the R.H.S.
$4 NH subscript 3 NI subscript 3 space rightwards arrow space straight N plus 9 straight I plus 3 NH subscript 4 straight I$
(V) To balance N atoms, multiply N by 5 on the R.H.S.
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(vi) Change the elementary gases into molecular form, by multiplying the equation by 2
$8 NH subscript 3 NI subscript 3 space rightwards arrow space space 5 straight N subscript 2 plus 9 straight I subscript 2 plus 6 NH subscript 4 straight I$

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