Bromine is in gaseous state
Answer:
D
Explanation:
At constant volume, the heat of reaction is equal to the change in the internal energy of the system. ... Most chemical reactions occur at constant pressure, so enthalpy is more often used to measure heats of reaction than internal energy.
When perfume is sprayed in a room the particles of perfume diffuse with the particles in the air.
Nobles gases, since they all have 8 e- on their last layer of electrons.
MgF₂ ( <span>Magnesium fluoride )
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