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Chemistry Forums for Students => High School Chemistry Forum => Topic started by: Korokian on September 21, 2006, 07:00:06 PM

Title: balancing chemical equation
Post by: Korokian on September 21, 2006, 07:00:06 PM

When solid mercury (II) nitrate is heated, it decomposes to form solid mercury(II) oxide, gaseous nitrogen dioxide, and oxygen.

i believe its Hg(NO3)2 (s) ----> HgO (s)+ NO2 (g) + O2 (g)

correct me if i'm wrong.... because i can't get a balanced equation

Title: Re: balancing chemical equation
Post by: Borek on September 21, 2006, 07:05:37 PM

Looks reasonably and can be balanced. Sum of all stoichiometric coefficients - 9 :)

Title: Re: balancing chemical equation
Post by: Korokian on September 21, 2006, 07:26:55 PM

got it thx

Title: Re: balancing chemical equation
Post by: english on September 21, 2006, 07:31:44 PM

Looks ok.

These seem tricky but they are very simple.

On the left you have 6 O, on the right 5.

So just take 3/2 of O₂ and that should give you 6 O on the right.  Balanced!  ;D

Title: Re: balancing chemical equation
Post by: Korokian on September 21, 2006, 07:42:20 PM

yes i like that trick, i need to practice that more :)