<span>When a chemical reaction occurs and the thermometer in the container records a drop in temperature t</span>he reaction is exothermic because heat was released by the reaction.
<span>B. The reaction is exothermic because heat was released by the reaction. is your answer.
Hoped I helped!</span>
Answer:
18 atoms has a mass of 18.0g (grams)
Answer:
If the numbers of each type of atom are different on the two sides of a chemical equationExplanation: