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October 25, 2014

Homework Help: chemistry

Posted by k on Sunday, January 29, 2012 at 11:59pm.

Which of the following is a situation where an objectís potential energy varies as a result of changes due to its chemical composition?

The melting of ice.

The burning of wood.

A ball rolling down a hill.

A parachute slowing a skydiver's fall.

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