Why is a closed system required for conservation of mass to be observed in a chemical reaction?
a closed system can exchange both energy and matter with its surroundings
a closed system can exchange energy with its surroundings but not matter
a closed system cannot exchange energy or matter with its surroundings
the statement is false, you can check conservation of mass using an open system
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The correct answer is: a closed system cannot exchange energy or matter with its surroundings. This is because if the system is open and matter is able to enter or leave the system, then the conservation of mass cannot be observed as the amount of matter in the system can change. In a closed system, however, the amount of matter remains constant, allowing for the observation of conservation of mass.
1 answer