Question

sep develop models use colored pencils to draw models for a chlorine molecule, cl₂, and for a hydrogen chloride molecule, hcl. use the colors and relative sizes from the atom key on the previous page.

Explanation:

This task involves representing chemical molecules visually using a provided atom - key for colors and relative sizes. It is a hands - on activity related to understanding molecular structure in Chemistry.

Answer:

Use colored pencils to draw a chlorine molecule ($Cl_2$) and a hydrogen chloride molecule ($HCl$) according to the colors and relative sizes from the atom key on the previous page.