which sample of matter is a mixture (1)H2O(s) (2)H2O(l) (3) NaCl(l) (4)NaCL(aq)

please explain the answe !

3 answers

the components/elements of a mixture can be physically separated

http://www.elmhurst.edu/~chm/vchembook/106Amixture.html
Nacl(l)
NaCL(aq)