Question

te for advanced students: in some sketches the distance between particles has been exaggerated to make it easier to see each in
substance\tclassification
\t\t(check all that apply)
normal\t1000x\t10,000,000x\tgas
\t\t\tliquid
\t\t\tsolid
\t\t\telement
\t\t\tcompound
\t\t\tmixture
\t\t\tsolution
\t\t\tpure substance
\t\t\thomogeneous mixture
\t\t\theterogeneous mixture

Explanation:

Step1: Analyze Particle Arrangement

The particles are widely spaced (consistent with gas) and show different particle types (sizes/shapes), indicating a mixture. Heterogeneous mixtures have non - uniform composition.

Step2: Evaluate Classifications

• Gas: Spacing matches gas particle behavior.
• Mixture: Different particle types mean it's a mixture.
• Heterogeneous Mixture: Non - uniform particle distribution (different sizes/shapes) confirms this.
• Other classifications: Liquid/solid have closer particles; element/compound/pure substance have uniform particle type; solution/homogeneous mixture have uniform composition (not seen here).

Answer:

The correct classifications are gas, mixture, and heterogeneous mixture (as checked in the given options: gas, mixture, heterogeneous mixture are correctly selected based on particle arrangement and composition analysis).