Changes of state are physical changes in matter. They are reversible changes that do not involve changes in matter's chemical makeup or chemical properties
Chemical reactions take place when existing bonds between atoms are broken and new bonds form. When the gas ethene is heated at high pressure, its molecules link together in long chains to make the plastic polythene. Polythene is used to make plastic dishpans, squeeze bottles, and plastic bags.
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Answer:
Changes of state are physical changes in matter. They are reversible changes that do not involve changes in matter's chemical makeup or chemical properties
Answer:
Chemical reactions take place when existing bonds between atoms are broken and new bonds form. When the gas ethene is heated at high pressure, its molecules link together in long chains to make the plastic polythene. Polythene is used to make plastic dishpans, squeeze bottles, and plastic bags.