A scientist studies the formation of a new polymer. The table shows the numbers of each type of atom in the two functional groups that react to form one link.
| Carbon atoms | Hydrogen atoms | Oxygen atoms | Nitrogen atoms | |
|---|---|---|---|---|
| Before the link forms | 1 | 3 | 2 | 1 |
| In the new polymer link | 1 | 1 | 1 | 1 |
Use the information in the table to explain why the polymer forms by a condensation reaction.
94 exam-style questions on AQA GCSE Chemistry 7.3 Synthetic and naturally occurring polymers, covering 7.3.1 Addition polymerisation, 7.3.2 Condensation polymerisation, 7.3.3 Amino acids, and 7.3.4 DNA (deoxyribonucleic acid) and other naturally occurring polymers. Each one has a worked solution and a mark scheme showing where the marks go.