Question

For the balanced equation shown below, how many moles of (NH4)2Cr2O7 reacted, if 0.8353 moles of Cr2O3 are produced?

(NH4)2Cr2O7 --> N2+4H2O+Cr2O3

Answer 1

0,8353 moles of (NH4)2Cr2O7 reacted, because in equation numbers before
formulas (NH4)2Cr2O7 and Cr2O3 are the same (1).