Food packaging produces lots of waste. This waste includes both plastic and glass.

1. (a)One of the plastics is the addition polymer poly(propene). Complete the equation by drawing the partial structure of poly(propene). H₃C H C=C H H →[2]
2. (b)Plastic waste is disposed of by combustion. Construct an equation to show the complete combustion of poly(propene). Use the empirical formula of poly(propene), CH₂, in the equation.[2]
3. (c)(i)Some plastics are biodegradable. Suggest an advantage of a plastic that is biodegradable.[1]
4. (c)(ii)The partial structure of a condensation polymer is shown. H O | || -O-C-C- | H -O-C-C- | H Draw the structure of the monomer used to make this polymer.[1]
5. (d)Glass waste is melted and then made into new objects. Use the kinetic particle theory to describe the changes in movement and arrangement of the particles when a solid becomes a liquid.[2]
6. (e)Glass is made from sand, SiO₂. Explain, in terms of structure and bonding, why sand has a high melting point.[2]

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