Jonas mixes citric acid with baking soda. How does he know the reaction is endothermic? the temperature of the solution decreases the baking soda changes color the citric acid forms gas bubbles the temperature of the solution increases
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The reaction between citric acid and baking soda had a negative At value. The reaction is an endothermic reaction because it takes in energy in form of heat. This is known because the temperature decreased as the reaction took in heat.
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