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Exothermic + enothermic reactions
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卡片总数: 6 张•内容版本: v4•公开卡包•更新时间: 8/1/2026
卡片预览 (6 张)
#1
正面 (问题)
What happens when chemical bonds are made?
背面 (解答)
Energy is released: the compound becomes more stable
#2
正面 (问题)
What is needed to break bonds?
背面 (解答)
Energy; which is absorbed
#3
正面 (问题)
What is enthalpy?
背面 (解答)
It’s the interior heat of a substance
#4
正面 (问题)
What is enthalpy change?
背面 (解答)
It describes the change of the internal heat before and after a process (A reaction)
#5
正面 (问题)
What happens to the PE in an endothermic reactions?
背面 (解答)
The PE increases in an endothermic reaction: heat is turned into potential energy stored in chemical bonds
#6
正面 (问题)
What happens to the PE in an exothermic reaction?
背面 (解答)
The PE decreases in an exothermic reactions: it’s released as a form of heat from chemical bonds