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# Thank you. This chemical equation represents the polymerization of n molecules of ethylene (ethene).

Hi, please help me with this exercise. Thank you.

**This chemical equation represents the polymerization of n molecules of ethylene (ethene).**

n(H2C=CH2) --> -(H2C-CH2)-n

**How much energy must be supplied or removed if 555 molecules are polymerized? If energy must be supplied give a positive number, if energy must be removed give a negative number.**