Two polymer samples are made from the same repeating unit.
| Polymer sample | Average number of repeating units in one molecule | Melting point in ∘C^\circ\text{C}∘C |
|---|---|---|
| Q | 2000 | 108 |
| S | 5000 | Not measured |
A sample of polymer S is heated to 100 ∘C100\ ^\circ\text{C}100 ∘C.
Explain what state polymer S is expected to be in at 100 ∘C100\ ^\circ\text{C}100 ∘C.
84 exam-style questions on AQA GCSE Chemistry 2.2 How bonding and structure are related to the properties of substances, covering 2.2.1a The three states of matter, 2.2.1b Limitations of the simple particle model, 2.2.2 State symbols in chemical equations, 2.2.3 Properties of ionic compounds, 2.2.4 Properties of small molecules, 2.2.5 Polymers, 2.2.6 Giant covalent structures, 2.2.7 Properties of metals and alloys, and 2.2.8 Metals as conductors. Each one has a worked solution and a mark scheme showing where the marks go.