Question

drag an oval over the format below that symbolizes these formulas: (molecular models of compounds) c₃h₆o₃, 3 ch₂o, 3 cho (with 3 ch₂o circled)

Explanation:

Step1: Count atoms per molecule

Each shown molecule has 1 C, 2 H, 1 O: $\text{CH}_2\text{O}$

Step2: Count total molecules

There are 3 identical $\text{CH}_2\text{O}$ molecules.

Step3: Match to formula

3 molecules of $\text{CH}_2\text{O}$ is written as $3\text{CH}_2\text{O}$

Answer:

$3\text{CH}_2\text{O}$ (the middle option)