Draw the isomers for C2h2

Is this correct?

CH3-CH=CH-CH3

There's only one possible isomer.

No. What you have drawn is not an isomer of C2H2 for it doesn't have the formula of C2H2 but C4H8.

I'm doing this for Chem 11, wouldn't it be H-C-C-H with the two Carbons having a triple bond?

To determine the isomers of C2H2 (also known as ethyne), we need to consider the different possible arrangements of carbon and hydrogen atoms. Let's start by identifying the carbon atoms in C2H2.

C2H2 has two carbon atoms, which we can label as C1 and C2. Since all the hydrogen atoms in C2H2 are bonded to the carbon atoms, we will have two possible bonding configurations to consider.

Here's how we can arrange the carbon and hydrogen atoms:

1. C1≡C2: In this isomer, the two carbon atoms are connected by a triple bond. Each carbon atom is bonded to one hydrogen atom. This arrangement is known as a linear or straight-chain isomer.

Molecular formula: HC≡CH

Structural formula: H-C≡C-H

Bond-line notation: HCCH

So, in conclusion, the correct and only isomer for C2H2 (ethyne) is HC≡CH.

The structure you mentioned - CH3-CH=CH-CH3 - does not represent an isomer of C2H2. It instead represents 1-butene (C4H8), which has four carbon atoms and eight hydrogen atoms.

Remember, isomers have the same molecular formula but different structural arrangements.