# Question #58b7f

Sep 6, 2017

Yes, you can $H$ atoms, add, except...

#### Explanation:

H atoms can be added to all carbons except, $= C =$, which $C$ has already bonded with $4 H$ atoms, which means that, $H$ can't be added again..

In Organic Chemistry, Carbon, C has the ability to bond with only 4 Hydrogen Atoms, $H . .$

$\text{C = C - C = C - C = C = C - OH}$ Where each $= \mathmr{and} -$ represent the hydrogen Carbon is bonded with..

Also...

For $\text{C = C}$.... Carbon, $C$ has the ability to have only $2 H$, attached to it, since they already have $2 H$ each..

Hope you understand!

Sep 6, 2017

No. See explanation.

#### Explanation:

Carbon can make 4 bonds. From those bonds we can see that (counting from left to right):

• first atom uses 2, so it can have 2 atoms of hydrogen,

• second, third, fourth and fifth use 3 (you count bonds both left and right from the atom), so you can add one hydrogen atom to each carbon,

• sixth atom uses four, so you cannot add anything here,

• last atom uses 3 bonds, so you can add one hydrogen atom here.

Finally the fomula would be:

$C {H}_{2} = C H - C H = C H - C H = C = C H - O H$