EXOTHERMIC AND ENDOTHERMIC
REACTIONS EXAM QUESTIONS AND
ANSWERS UPDATED (2024/2025)
(VERIFIED ANSWERS)
Exothermic Reaction - ANS ✓A chemical reaction that releases energy, usually
in the form of heat.
Endothermic Reaction - ANS ✓A chemical reaction in which energy is absorbed
What's the main difference between an exothermic and endothermic
reaction? - ANS ✓An exothermic reaction releases energy and feels warm while
an endothermic reaction absorbs energy and feels cool.
Sara mixed water and calcium chloride. The reaction made the water turn
cloudy. The temperature of the reaction went from 23 degrees C to 52
degrees C. Is the reaction exothermic or endothermic? - ANS ✓Exothermic
Samuel mixed baking soda with hydrochloric acid. The reaction bubbled
and the temperature went from 52 degrees C to 22 degrees C. Is the
reaction exothermic or endothermic? - ANS ✓Endothermic
1
Exothermic
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