How many atoms are linear in the compound `(CH_(3)-CH_(2)-C -= C-CH=CH_(2))` ?

Explanation

To determine how many atoms are linear in the compound \( CH_3-CH_2-C \equiv C-CH=CH_2 \), we need to analyze the structure of the compound and identify the hybridization of the carbon atoms involved.

### Step 1: Identify the structure of the compound
The compound can be broken down as follows:
- \( CH_3 \) (methyl group)
- \( CH_2 \) (methylene group)
- \( C \equiv C \) (triple bond between two carbon atoms)
- \( CH \) (connected to another \( CH_2 \) group)
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