The average speed is 0.28
Answer:
5 1 2 4and 3 this is correct way
Answer:
A and D are the answers
Explanation:
the other two don't make sense
Answer: Polythene
Polythene is a synthetic polymer classified as plastics.
Explanation:
Polythene is formed artificially from several repeating units of ethene molecules (monomers) in a reaction known as polymerization.
The polyethene can be represented as [CH2-CH2]n, where n is thousands to ten thousands unit of ethene.
It is used to make
- plastic bags,
- cable insulators
- plastic crates etc
Thus, polythene is a synthetic polymer of ethene, and classified as plastics.
A chemical compound made up of ions by forces that create ionic bonding. It is a neutral compound.
