Question

When you mixed baking soda and vinegar, you caused
a chemical reaction to occur. The bubbles that made the
mixture foamy were caused when carbon dioxide formed.
At room temperature, carbon dioxide is a gas. This gas
formed bubbles in the solution.
You also measured another change. The temperatures of
the vinegar and the baking soda solution changed after
they were mixed together. This temperature change
indicates a transfer of energy.
Nearly all chemical reactions involve a change in energy.
Some chemical reactions absorb or store energy. When you
mixed baking soda and vinegar, thermal energy flowed into
the reaction. Recall that heat is the transfer of thermal
energy. The chemical reaction between baking soda and vinegar absorbed heat.

Q:
Explain why the temperature of the mixture changed during the reaction.

Answer 1

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