Photo AI
6. Polymer molecules are made by joining large numbers of small molecules (monomers) together - Edexcel - GCSE Chemistry - Question 6 - 2012 - Paper 1
Question 6
6. Polymer molecules are made by joining large numbers of small molecules (monomers) together. (a) The table shows some information about three polymers and the mon... show full transcript
Worked Solution & Example Answer:6. Polymer molecules are made by joining large numbers of small molecules (monomers) together - Edexcel - GCSE Chemistry - Question 6 - 2012 - Paper 1
Step 1
Complete the table: name of polymer, structure of polymer molecule, name of the monomer used to make the polymer molecule, structure of monomer molecule
Answer
| poly(ethene) | [C2H4]n | ethene | H2C=CH2 | | poly(propene) | [C3H6]n | propene | H2C=CH-CH3 | | poly(chloroethene) | [C2H3Cl]n | chloroethene | H2C=CHCl |
Step 2
Step 3
Describe other properties of poly(chloroethene) that make it suitable for gutters and drainpipes.
Answer
Poly(chloroethene) is resistant to corrosion, durable, and has good weather resistance. Additionally, it is lightweight and can be easily installed, making it ideal for outdoor applications such as gutters and drainpipes.
Step 4
Discuss the advantages and disadvantages of each disposal method, and explain which disposal method should be used for plastic bottles.
Answer
Waste disposal by landfill is convenient but can take up a lot of land and lead to environmental issues like soil and water contamination. Burning waste reduces volume but releases CO2 and other harmful gases. Recycling minimizes waste and conserves resources; however, it can be ineffective if not properly managed. For plastic bottles, recycling is the preferred method as it reduces waste and turns materials into new products.