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Match the following associations.

1. E2 < E1
energy in an endothermic reaction
2. E2 > E1
symbol for change in energy
3. H
energy in an exothermic reaction
4. Joule
SI unit of energy

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Answer:

Here's what I get  

Explanation:

[tex]\begin{array}{lcl}\text{1. E2 ${data-answer}lt;$ E1} & = & \text{energy change in an exothermic reaction}\\\text{2. E2 ${data-answer}gt;$ E1} & = & \text{energy change in an endothermic reaction}\\\text{3. $\Delta$H} & = & \text{symbol for change in energy}\\\text{4. Joule} & = & \text{SI unit of energy}\\\end{array}[/tex]

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