Question

Question #edba5

Answer 1

`Al(OH)_3+3HNO_3->Al(NO_3)_3+3H_2O`

Explanation:

1. Given the word equation, write it in formula form as written and balance.
2. There is no specific rules on balancing chemical equations so long it follows the law of conservation of mass.
3. Do not attempt to change any subscript in the involved compounds just to balance the equation. Doing so, would alter the identities of the compound
4. Polyatomic Ions can be regarded as one unit. If not convenient, count each element both sides of the equation separately. This approach of balancing is called inspection method or trial and error method. Account the initial atoms of each elements both the reactant and product sides of the equation. Every coefficient attachment, recount the elements' atoms on the sides where the coefficient is being attached until a balanced equation is attained; i.e.,
5. `color(red)(Al(OH)_3+3HNO_3)->Al(NO_3)_3+3H_2O`
   For example, the attachment of `3` in `HNO_3`. This means, the
   initial counts of elements with `H`, `N`, `O` in the reactant
   sides will be changed; thus,
   `"Reactants":`
   `Al=1`
   `O=cancel(6)12`
   `H=cancel(4)6`
   `N=cancel(1)3`
6. `Al(OH)_3+3HNO_3->color(blue)(Al(NO_3)_3+3H_2O)`
   For example, the attachment of `3` in `H_2O`. This means, the
   initial counts of elements with `H`, `O` in the product sides will be changed; thus,
   `"Products":`
   `Al=1`
   `O=cancel(10)12`
   `H=cancel(2)6`
   `N=3`
7. The balanced equation is
   `Al(OH)_3+3HNO_3->Al(NO_3)_3+3H_2O`