grenadeApproved Tutor Answer11 Years agoAmmonium dichromate, (NH4)2Cr2O7, decomposes when heated to produce chromium(III) oxide [Cr2O3], nitrogen gas, and water vapor:(NH4)2Cr2O7(s) ——> Cr2O3(s) + N2(g) + 4H2O(g)approve if useful