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Figure 1 shows a list of particles - Edexcel - GCSE Chemistry - Question 1 - 2021 - Paper 1
Question 1
Figure 1 shows a list of particles. ethene molecule nanoparticle sodium atom starch molecule Figure 1 In the spaces below, write the names of these particles in o... show full transcript
Worked Solution & Example Answer:Figure 1 shows a list of particles - Edexcel - GCSE Chemistry - Question 1 - 2021 - Paper 1
Step 3
Explain a possible risk associated with nanoparticulate materials.
Answer
There are concerns regarding the long-term effects of nanoparticulates as they have not been extensively researched over time. Potential risks include that the nanoparticles could enter the bloodstream through skin or other membranes, which may lead to unknown health impacts.
Step 4
Explain the advantage of using catalysts made of nanoparticles rather than larger particles.
Answer
Catalysts made of nanoparticles have a much larger surface area compared to those made from larger particles. This increased surface area enhances their effectiveness in chemical reactions, leading to increased reaction rates.