how do you write a balanced equation for the chemical reaction water plus gaseous dinitrogen trioxide yield a solution of nitrous acid.

Question

write the balanced equation and indicate the physical states where they are indicated

Answer 1

To write out the chemical equation, you’ll have to recall your nomenclature (naming rules):

 

Water we know is H2O

dinitrigen trioxide is N2O3

nitrous acid is HNO2

 

according to the description, the reactions set up is 

 

H2O (l) + N2O3 (g) —> HNO2 (aq)

 

where it tell us that N2O3 is gaseous (indicated with “g” and HNO2 is in aqueous solution (indicated “aq”). It does not explicitly say, but the water is likely in a liquid state, which gives the final solution of acidic product.

 

from there we balance the equation with a coefficient 2 in front of nitrous acid:

 

H2O (l) + N2O3 (g) —> 2 HNO2 (aq)