Question

A glass jar contains pure sodium chloride. which term or terms could be used to describe the contents of this glass jar?

Answer 1

We are tasked to identify the term that characterize a pure sodium chloride in a jar. To solve for this, we need to us the classification of matter matrix which is
                                No
Uniform Properties-----> Heterogeneous Mixture
Yes|
      |                            No
Fixed Composition?--------> Solution
Yes|
      |                                  No
Chemical Decomposable----> Element
Yes|
      |                           
COmpound

Since the substance have a uniform properties and fixed compositions (pure) and can be chemically decompose through electrolysis, then it is a compound