Question

¿qué imagen(es) se considerarían sustancias puras? image of five molecular diagram sets (i, ii, iii, iv, v) options: i y ii, ii y iv, iii y v, v

Explanation:

To determine pure substances, we analyze each image:

• Image II: Contains only one type of particle (single black dots), so it's a pure substance (element).
• Image IV: Contains only one type of particle (clusters of black dots, uniform composition), so it's a pure substance (compound or element).
• Image I: Mix of different particle types (black pairs, white pairs, black - white pairs) → mixture.
• Image III: Mix of different particle types (black - white pairs, white pairs) → mixture.
• Image V: Wait, no—Image IV has uniform black dot clusters, Image II has uniform single black dots. The option "II y IV" (II and IV) matches, as both have uniform, single - type particle compositions (pure substances: elements or compounds have uniform particle types; mixtures have multiple).

Answer:

B. II y IV (assuming the purple option is labeled B, as per the visual: purple is "II y IV", green "I y II", orange "III y V", teal "V")