Which sample is a mixture?
naci(l) or naci(aq)

can you explain why?

in  chemistry, a  mixture  is a  material  made up of two or more different  substances  which are physically combined.[1]a mixture is the physical combination of two or more substances in which the identities are retained and are mixed in the form of  solutions,  suspension  and  colloids.[2][3]

mixtures are one product of mechanically blending or mixing chemical substances such as  elements  and  compounds, without chemical bonding or other chemical change, so that each ingredient substance retains its own chemical properties and makeup.[4]  despite the fact that there are no chemical changes to its constituents, the physical properties of a mixture, such as its  melting point, may differ from those of the components. some mixtures can be  separated  into their components by using physical (mechanical or thermal) means.  azeotropes  are 

the food using pesticides in the future will harm you by giving you diseases like cancer or something since they have things that we should not eat in it like chemicals or pesticides. that is why organic food is more expensive because they take the time to make it right and healthy for you to eat.

explanation:

dynamic equilibrium is the answer.