Question

answer the questions in the table below about this molecule: what is this molecules chemical formula? note: write the simplest molecular chemical formula, in which each element symbol appears only once. how many ch₃, ch₂, and ch groups are in this molecule?

Explanation:

Step1: Count carbon atoms

Count the number of carbon - atoms in the molecule. There are 10 carbon atoms.

Step2: Count hydrogen atoms

Count the number of hydrogen - atoms. There are 12 hydrogen atoms.

Step3: Determine the chemical formula

The chemical formula is $C_{10}H_{12}$.

Step4: Identify $CH_3$, $CH_2$, and $CH$ groups

Examine the structure. There are 0 $CH_3$ groups, 4 $CH_2$ groups, and 4 $CH$ groups.

Answer:

What is this molecule's chemical formula? $C_{10}H_{12}$
How many $CH_3$, $CH_2$, and $CH$ groups are in this molecule?
$CH_3$: 0
$CH_2$: 4
$CH$: 4