CharmingCat
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I've got a Chemistry test tomorrow and I'm trying to revise as well as I can for it. Does anyone know what the end-of-unit test is like and how to ace it? Thanks!
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Jamesstanley0
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Revise the delocalised electrons and what their duties are. You are likely to get a question asking about how electricity or heat can pass through a substance, if asked this you are to mention how the substance is made up e.g. the delocalised electrons carry the current though as they can move throughout. You should know if a metal has a giant metallic structure or a regular metallic structure (when asked about structure in metals these should be used). When it comes to bonding you need to know ionic and covalent. You need to know when these occur and how they occur, for example in covalent the atoms chemically combine to gain full outer shells. You should know the characteristics of each, like covalent are the strongest and are hard to break down. You should also know the structure of diamond and graphite. You need to know the charectistics of them. Diamond, each carbon atom is bonded and joined to four other bonds making them strong and hard to break. Graphite each carbon atom is joined by three other bonds, this allows the layers to slide and move across each other.

i hope this helps and if you have anymore questions feel free to ask.
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CharmingCat
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Thank you so much for your help!
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