The flow chart illustrates some reactions involving nitrogen compounds. gas 1 $\xrightarrow{\text{acid}}$ salt 1 $\xrightarrow{\text{alkali}}$ salt 2 + other products Which row correctly identifies gas 1 and salt 2?
- Agas 1: ammonia; salt 2: ammonium nitrate
- Bgas 1: ammonia; salt 2: sodium nitrate
- Cgas 1: nitrogen dioxide; salt 2: ammonium nitrate
- Dgas 1: nitrogen dioxide; salt 2: sodium nitrate