J.R. S. answered 10/17/20
Ph.D. University Professor with 10+ years Tutoring Experience
4. Solid iron(III) oxide react with solid carbon forming iron metal and gaseous carbon dioxide.
2Fe2O3(s) + 3C(s) ==>4Fe(s) + 3CO2(g)
5. Solid ammonium nitrite decomposes into nitrogen gas and liquid water.
NH4NO2(s) ==> N2(g) + 2H2O(l)
6. Gaseous sulfur dioxide reacts with oxygen forming gaseous sulfur trioxide.
4SO2(g) + 2O2(g) ==> 4SO3(g)