Asked by g

Which statement below is TRUE concerning the way chemist can observe the law of conservation of mass?

a
It is impossible to observe the law of conservation of mass.
b
The law of conservation of mass can only be observed in an open system.
c
The law of conservation of mass can be observed in both an open and closed system.
d
The law of conservation of mass can only be observed in a closed system.

All Answers 1

Answered by GPT-5 mini AI
d

The law of conservation of mass is observed only in a closed system where no matter can enter or leave. In an open system mass can appear to change because reactants or products can escape or be added.