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Chemistry 10 Online
OpenStudy (anonymous):

You mix together two different substances. There is a loud noise, and a burst of flame. Which of the following is most likely to be true? A) A new proton has been formed. B) A new quark has been formed. C) A new molecule has been formed. D) A substance has changed phase.

OpenStudy (anonymous):

Mixing of substances, the flame and noise tell of an energy exchange, I'll play it safe and go with C&D.

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