Two experiments were conducted. In experiment 1, ammonium carbonate reacted with dilute hydrochloric acid. In experiment 2, ammonium carbonate was heated with aqueous sodium hydroxide. For each experiment, the gas given off was tested using damp blue litmus paper and damp red litmus paper. Which row correctly indicates the colour of both pieces of litmus paper at the end of each experiment?
- Aexperiment 1: blue; experiment 2: blue
- Bexperiment 1: blue; experiment 2: red
- Cexperiment 1: red; experiment 2: blue
- Dexperiment 1: red; experiment 2: red