(Answered) This is a chemistry question regarding physical and

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This is a chemistry question regarding physical and chemical changes. The question is the following:

You mix 3 liquids and the resulting solution becomes very hot. A short time later bubbles began to form. There is a chemical AND a physical change happening.

a. Explain what could be occurring

b. How could you determine if the gas in the previous problem was the result of a chemical change or a physical change?

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