Yes, during a physical change, molecules remain the same. The arrangement and motion of molecules may change, but the actual atoms that make up the molecules do not change.
These were called committee meetings during the Constitutional Convention.
During a physical change, the chemical makeup of matter remains the same. The atoms and molecules that make up the substance do not change their identities, only their arrangement or state. This means that no new substances are formed during a physical change.
During a physical change, the composition of matter remains the same. The atoms and molecules of the substance do not change; only the arrangement or state of the matter is altered. This means that no new substances are formed during a physical change.
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Glucagon.
In general, the particle size remains the same during a physical change. The arrangement or organization of the particles may change, but the individual particles themselves do not break down or change in size.
Government meetings in Pennsylvania took place at Independence Hall, Philadelphia.
During a change of state, energy is either absorbed or released as heat. This is because the particles in a substance need energy to break their bonds and move into a new arrangement. A change of state is a physical change because it does not involve a change in the chemical composition of the substance, only its physical properties.
Meetings can be considered as working hours, as they are typically scheduled during regular work hours and are a part of the job responsibilities.