Question

how many ethene in polyethene​

Answer 1

$\huge{\underline{\mathfrak{\orange{ANSWER}}}}\:$

Poly(ethene)

Poly(ethene) is formed when several monomers of ethene (an alkene) are joined together. Ethene can take part in this type of reaction as it is has a double bond (it's unsaturated) which opens up to allow multiple monomers to form a chain.

There are a lot of ethene present in polythene.

Hope this helps!!!

Answer 2

Explanation:

An addition reaction is one in which two or more molecules join together to give a single product. During the polymerisation of ethene, thousands of ethene molecules join together to make poly(ethene) - commonly called polythene