C1P2/xtra//What are the properties that make polythene useful?
Strong,flexible and durable
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C1P2/xtra//Describe the structure of polythene
It is strong because the atoms in a molecule are joined together tightly, so it is difficult to break up a molecule.-It is flexible because its molecule can slide over each other
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C1P2/xtra//What are the two types of polythenes?
Low density polythene and High density Polythene
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C2P1/1.What is covalent bonding?
Sharing electrons
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C2P1/2.What is ionic bonding?
Giving and taking electrons
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Front
C1P2/xtra//Describe the structure of polythene
Back
It is strong because the atoms in a molecule are joined together tightly, so it is difficult to break up a molecule.-It is flexible because its molecule can slide over each other
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