Question

An experiment was set up as shown below.

1. A student passed dry ammonia gas into the glass tube and tried to ignite the gas before allowing oxygen gas. What observation was made? 
2. Write the equation for the reaction above

Answer 1

1. Ammonia gas does not burn in air. Thus it did not ignite.
2.    
   • The gas ignites with green – yellow flame  
   • 4NH_3(g)  +  3O_2(g)   →  2N_2(g)  +  6H₂O_(g)