A chemist uses 18.0 g of an alkene monomer to make a polymer. All of the monomer reacts. The polymer produced has a mass of 18.0 g.
Give one reason why the mass of the polymer is the same as the mass of the alkene monomer used.
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.