Final answer:
CH₂Cl₂ Tetrahedral (Option A) is the compound whose formula and shape match correctly. CH₂Cl₂ has a tetrahedral shape, making it the correct match between the formula and the molecular shape.
Step-by-step explanation:
The student is asking about the correct match between the chemical formula of a compound and its molecular shape.
Upon analysis of the options provided, we find that:
- CH₂Cl₂ has a tetrahedral shape, with the carbon atom at the center and the hydrogen and chlorine atoms at the corners of the tetrahedron.
- CO₂ has a linear shape, not bent, as it contains two regions of electron density with no lone pairs on the central carbon atom.
- NH₃ has a trigonal pyramidal shape, not trigonal planar.
- H₂O has a bent shape (about 109°), not linear.
Therefore, the correctly matched compound and shape from the given options is CH₂Cl₂ Tetrahedral.
Hence, the correct answer is Option A.