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.
Reactants are the substances that undergo changes and the new substance created from it is called products.
What best explains the type of energy present in the vibrating atoms of a substance?
The answer is: <u>It is thermal energy, which is a type of kinetic energy. </u>
Chemical indicators are used to identify when a reaction has undergone a chemical change or if it has reached completion.
