Chemistry worksheet for drawing Lewis structures and determining molecular geometry of common molecules.

- H₂O: Lewis Structure - O central atom with two single bonds to H atoms and two lone pairs; Molecular Structure - Bent; Molecular Geometry - Bent
- SO₃: Lewis Structure - S central atom with three double bonds to O atoms (resonance structures possible); Molecular Structure - Trigonal planar; Molecular Geometry - Trigonal planar
- HCN: Lewis Structure - H-C≡N with one lone pair on N; Molecular Structure - Linear; Molecular Geometry - Linear
- SiCl₄: Lewis Structure - Si central atom with four single bonds to Cl atoms and no lone pairs on Si; Molecular Structure - Tetrahedral; Molecular Geometry - Tetrahedral
- CO₃²⁻: Lewis Structure - C central atom with one double bond and two single bonds to O atoms (resonance), each single-bonded O has three lone pairs and a negative charge; Molecular Structure - Trigonal planar; Molecular Geometry - Trigonal planar