Structure and Bonding

6 important questions on Structure and Bonding

How can polymers with different properties be produced?

By using different alkenes to start with. By changing the temperature/pressure/catalyst in the polymerisation process

What is the difference between thermosoftening and thermosetting polymers' properties?

Thermosoftening polymers soften and melt when heated (as they don't have cross-links). Thermosetting polymers do not soften or melt when heated (as they are joined together by strong covalent cross-links)

Why are nanoparticles used in sun cream?

The sun cream still blocks UV rays but it is colourless
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Why are nanoparticles used in clothes?

Silver nanoparticles can kill bacteria

Why are nanoparticles used as catalysts?

Gold nanoperticles are an effective catalyst

Why are nanoparticles used in nanotubes?

Carbon nanoparticles are very strong when in the form of a nanotube

The question on the page originate from the summary of the following study material:

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