Physics, 26.09.2019 06:20 slend3rpiggy

Which piece of evidence would prove that a reaction is exothermic?
there is a phase change during the reaction.
one of the reactants is baking soda.
the reactants have more energy than the products.
there are more moles of gas in the products than in the reactants.

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Which piece of evidence would prove that a reaction is exothermic?
there is a phase change du...