a closed system cannot exchange energy or matter with its surroundings
In order for conservation of mass to be observed in a chemical reaction, it is essential that no mass is lost or gained from the system. This can only be guaranteed in a closed system, where no matter can enter or leave the system during the reaction. If a system is open and can exchange matter with its surroundings, it could potentially lead to mass being lost or gained, making it impossible to accurately observe the conservation of mass.
Why is a closed system required for conservation of mass to be observed in a chemical reaction?
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a closed system can exchange both energy and matter with its surroundings
a closed system cannot exchange energy or matter with its surroundings
a closed system can exchange energy with its surroundings but not matter
the statement is false, you can check conservation of mass using an open system
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