Answer:
The answer is B an open system allows energy and mass to move in and out of it
Hope it helps
option c is correct
number of electron in the outermost shell describe the reactivity if the outermost shell is completely filled its mean the reactivity of element is low and if it is completely filled then the element is highly reactive
Answer this ......,..,.,.,.,.,.,.,..,.,.,.,.,.z.z.,.,.,.,..,.,.,.,.,.,.,.,.,..,
ioda
A) CuBr2
b) Al(NO3)3
c) Ca3(PO4)2
d) Fe2S3
e) HgCl2
f) Mg(C2H3O2)2
