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The eye-hand span for typing is
ΔH°
The standard enthalpy change, indicating the heat absorbed or released in a reaction at standard conditions (1 atm, 298 K).
ΔS°
Standard entropy change, a measure of disorder or randomness in a system during a process at standard conditions.
Reactant A
A placeholder term for a substance that undergoes a chemical change in a chemical reaction.
Product B
A term that broadly refers to a secondary or resultant compound generated in a chemical reaction, distinguished from other products by its labeling as "B".
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