Question

el aderezo que se usa para las ensaladas es un ejemplo de —
a. sustancia.
b. compuesto.
c. mezcla homogénea.
d. mezcla heterogénea.

Explanation:

Salad dressing typically consists of immiscible components (like oil and vinegar) that do not form a uniform, single-phase mixture. The distinct components remain visible and can be separated, which fits the definition of a heterogeneous mixture. A substance is a pure element or compound, a compound is a pure substance made of bonded elements, and a homogeneous mixture has a uniform composition throughout, none of which describe typical salad dressing.

Answer:

D. mezcla heterogénea.