Question 12 (1 point)
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 be observed in both an open and closed system.
c
The law of conservation of mass can only be observed in a closed system.
d
The law of conservation of mass can only be observed in an open system.
b
The law of conservation of mass can be observed in both an open and closed system.