Answer:
A - The can was open and gases were released.
If it is shown as ∆H , then it means that a specific chemical reaction is undergoing heat in Kelvin(K). If it is shown as ∆H° , then it means that a specific chemical reaction is undergoing heat in Celsius(C⁰).
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If it is correct then please mark my answer as the brailiest! :)
Answer: made up of an infinite number of indestructible atoms in unpredictable motion.
