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Mathematics 9 Online
OpenStudy (anonymous):

Which of the following indicates that a chemical change has happened during cooking? a.Energy is transferred from the stove to a pan. b.Butter melts. c.The food darkens. d.Bubbles form in boiling water.

OpenStudy (kinggeorge):

This question would fit well into the chemistry subject area. http://openstudy.com/study#/groups/Chemistry If your question doesn't get enough traffic there, feel free to post a link in the chat windows. Thanks!

OpenStudy (anonymous):

Thank you !

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