Ethylene is the starting material for the preparation of a number of two-carbon compounds including ethanol (industrial alcohol), ethylene oxide (converted to ethylene glycol for antifreeze and polyester fibres and films), acetaldehyde (converted to acetic acid), and vinyl chloride (converted to polyvinyl chloride).
Answer:
At any time.
Explanation:
Because it occurs in a full and a new moon.
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Answer:
the answer would be C adding a chemical catalyst
Explanation: