Are iron fillings, nitrogen, table salt (sodium chloride), a salad, and sugar in water

a compound
an element
a heterogeneous mixture
or a solution?

Question

Are iron fillings, nitrogen, table salt (sodium chloride), a salad, and sugar in water 

a compound 
an element 
a heterogeneous mixture
or a solution?

jiteshmeghwal9 · Answer

Iron fillings & Salad forms heterogeneous mixture with water as they do not mix uniformly with it.

jiteshmeghwal9 · Answer

Table salt & sugar dissolves completely in water forming a solution

jiteshmeghwal9 · Answer

I am not sure but i think nitrogen  & water also forms solution because a gas may dissolve completely with water.

jfraser · Answer

I'm thinking the question is really asking what $each$ substance is classified as, not what $mixing$ them together would be.

socccerkid21 · Answer

IM 99% SURE IT A SOLUTION