Description
Balance reaction properly, and showing all work "prove" that your reaction is balanced by using the "Molar mass x coefficient" method
Ammonium Dichromate decomposes to form chromium (III) oxide, nitrogen gas, and dihydrogen monoxide
Explanation & Answer
(NH4)2Cr2O7 = Cr2O3 + H2O + N2
To balance the equation through coefficient method one need to assign variables to solve the equation. So,
x(NH4)2Cr2O7 = yCr2O3 +z H2O + wN2
For N:
2x=2w
For Hydrogen:
8x=2z
For Cr:
2x=2y
For Oxygen:
7x=3y+z
Suppose x= 1
Then,
2(1)=2w
W=1
8x=2z
Z= 4
2x=2y
Y=1
7x=3y+z
7(1) = 3(1) + z
Z=4
Put the values of variables in the equation and you will get the balanced chemical equation.
(NH4)2Cr2O7 = Cr2O3 +4 H2O + N2