A pure substance melts at 17 ∘C17\,^\circ\mathrm{C}17∘C and boils at 118 ∘C118\,^\circ\mathrm{C}118∘C.
Statement 1: at 10 ∘C10\,^\circ\mathrm{C}10∘C, its particles vibrate about fixed positions
Statement 2: at 118 ∘C118\,^\circ\mathrm{C}118∘C, it can be present as both a liquid and a gas
Statement 3: at 20 ∘C20\,^\circ\mathrm{C}20∘C, its particles are close together and can move past one another
Which statements are correct?
1 only
1 and 3 only
2 and 3 only
1, 2 and 3
84 exam-style questions on Edexcel GCSE Chemistry 3.1 States of matter, covering 3.1.1 The three states of matter and changes of state. Each one has a worked solution and a mark scheme showing where the marks go.