Lewis Structures Practice Worksheet - Free Printable
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Step-by-step solution for: Lewis Structures Practice Worksheet
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Show Answer Key & Explanations
Step-by-step solution for: Lewis Structures Practice Worksheet
1. SO₂: S double bonded to both O atoms, one O has two lone pairs, other O has three lone pairs and a negative charge, S has one lone pair and a positive charge. Formal charges: S = +1, O (double bond) = 0, O (single bond) = -1.
2. CO₃²⁻: C double bonded to one O, single bonded to two O atoms. Double-bonded O has two lone pairs, each single-bonded O has three lone pairs and a negative charge. Formal charges: C = 0, double-bonded O = 0, each single-bonded O = -1.
3. NH₃: N single bonded to three H atoms, N has one lone pair. Formal charges: N = 0, each H = 0.
4. CH₄: C single bonded to four H atoms. Formal charges: C = 0, each H = 0.
5. H₂: H single bonded to H. Formal charges: each H = 0.
6. HF: H single bonded to F, F has three lone pairs. Formal charges: H = 0, F = 0.
7. H₂O: O single bonded to two H atoms, O has two lone pairs. Formal charges: O = 0, each H = 0.
8. N₂: N triple bonded to N, each N has one lone pair. Formal charges: each N = 0.
9. HCl: H single bonded to Cl, Cl has three lone pairs. Formal charges: H = 0, Cl = 0.
10. H₂S: S single bonded to two H atoms, S has two lone pairs. Formal charges: S = 0, each H = 0.
11. PF₅: P single bonded to five F atoms, each F has three lone pairs. Formal charges: P = 0, each F = 0.
12. CH₃COOH: C single bonded to three H and one C; that C double bonded to O and single bonded to OH. All atoms have complete octets. Formal charges: all atoms = 0.
13. NH₄⁺: N single bonded to four H atoms, N has no lone pairs. Formal charges: N = +1, each H = 0.
14. NO₂⁻: N single bonded to one O, double bonded to another O. Single-bonded O has three lone pairs and a negative charge, double-bonded O has two lone pairs. N has one lone pair. Formal charges: N = 0, single-bonded O = -1, double-bonded O = 0.
15. SO₄²⁻: S double bonded to two O atoms, single bonded to two O atoms. Each single-bonded O has three lone pairs and a negative charge. Formal charges: S = 0, each double-bonded O = 0, each single-bonded O = -1.
16. NO₃⁻: N double bonded to one O, single bonded to two O atoms. Each single-bonded O has three lone pairs and a negative charge. Formal charges: N = 0, double-bonded O = 0, each single-bonded O = -1.
17. OH⁻: O single bonded to H, O has three lone pairs and a negative charge. Formal charges: O = -1, H = 0.
18. H₂O₂: O single bonded to O, each O single bonded to one H. Each O has two lone pairs. Formal charges: each O = 0, each H = 0.
19. C₂H₆: Two C atoms single bonded, each C bonded to three H atoms. Formal charges: each C = 0, each H = 0.
20. CH₃OH: C single bonded to three H and one O; O single bonded to H. O has two lone pairs. Formal charges: all atoms = 0.
21. C₂H₄: Two C atoms double bonded, each C bonded to two H atoms. Formal charges: each C = 0, each H = 0.
22. C₄H₁₀: Four C atoms in a chain, each terminal C bonded to three H, each internal C bonded to two H. Formal charges: each C = 0, each H = 0.
23. C₂H₅OH: Two C atoms single bonded; first C bonded to three H, second C bonded to two H and one O; O bonded to H. O has two lone pairs. Formal charges: all atoms = 0.
24. ClO⁻: Cl single bonded to O, Cl has three lone pairs, O has three lone pairs and a negative charge. Formal charges: Cl = 0, O = -1.
25. H₂S₂: Two S atoms single bonded, each S bonded to one H. Each S has two lone pairs. Formal charges: each S = 0, each H = 0.
26. HNO₃: N double bonded to one O, single bonded to two O atoms. One single-bonded O is bonded to H. The O bonded to H has two lone pairs, the other single-bonded O has three lone pairs and a negative charge, double-bonded O has two lone pairs. Formal charges: N = +1, double-bonded O = 0, O bonded to H = 0, O with negative charge = -1.
27. H₂SO₄: S double bonded to two O atoms, single bonded to two OH groups. Each O in OH has two lone pairs. Formal charges: all atoms = 0.
28. CH₃NO₂: C single bonded to three H and one N; N double bonded to one O, single bonded to another O. The single-bonded O has three lone pairs and a negative charge, double-bonded O has two lone pairs. N has no lone pairs. Formal charges: C = 0, H = 0, N = +1, double-bonded O = 0, single-bonded O = -1.
29. C₂H₂: Two C atoms triple bonded, each C bonded to one H. Formal charges: each C = 0, each H = 0.
30. ClO₂⁻: Cl single bonded to two O atoms. Each O has three lone pairs and a negative charge. Cl has two lone pairs. Formal charges: Cl = +1, each O = -1.
31. PO₄³⁻: P single bonded to four O atoms. Each O has three lone pairs and a negative charge. Formal charges: P = 0, each O = -1.
32. CO: C triple bonded to O, C has one lone pair, O has one lone pair. Formal charges: C = -1, O = +1.
33. CO₂: C double bonded to two O atoms. Each O has two lone pairs. Formal charges: C = 0, each O = 0.
2. CO₃²⁻: C double bonded to one O, single bonded to two O atoms. Double-bonded O has two lone pairs, each single-bonded O has three lone pairs and a negative charge. Formal charges: C = 0, double-bonded O = 0, each single-bonded O = -1.
3. NH₃: N single bonded to three H atoms, N has one lone pair. Formal charges: N = 0, each H = 0.
4. CH₄: C single bonded to four H atoms. Formal charges: C = 0, each H = 0.
5. H₂: H single bonded to H. Formal charges: each H = 0.
6. HF: H single bonded to F, F has three lone pairs. Formal charges: H = 0, F = 0.
7. H₂O: O single bonded to two H atoms, O has two lone pairs. Formal charges: O = 0, each H = 0.
8. N₂: N triple bonded to N, each N has one lone pair. Formal charges: each N = 0.
9. HCl: H single bonded to Cl, Cl has three lone pairs. Formal charges: H = 0, Cl = 0.
10. H₂S: S single bonded to two H atoms, S has two lone pairs. Formal charges: S = 0, each H = 0.
11. PF₅: P single bonded to five F atoms, each F has three lone pairs. Formal charges: P = 0, each F = 0.
12. CH₃COOH: C single bonded to three H and one C; that C double bonded to O and single bonded to OH. All atoms have complete octets. Formal charges: all atoms = 0.
13. NH₄⁺: N single bonded to four H atoms, N has no lone pairs. Formal charges: N = +1, each H = 0.
14. NO₂⁻: N single bonded to one O, double bonded to another O. Single-bonded O has three lone pairs and a negative charge, double-bonded O has two lone pairs. N has one lone pair. Formal charges: N = 0, single-bonded O = -1, double-bonded O = 0.
15. SO₄²⁻: S double bonded to two O atoms, single bonded to two O atoms. Each single-bonded O has three lone pairs and a negative charge. Formal charges: S = 0, each double-bonded O = 0, each single-bonded O = -1.
16. NO₃⁻: N double bonded to one O, single bonded to two O atoms. Each single-bonded O has three lone pairs and a negative charge. Formal charges: N = 0, double-bonded O = 0, each single-bonded O = -1.
17. OH⁻: O single bonded to H, O has three lone pairs and a negative charge. Formal charges: O = -1, H = 0.
18. H₂O₂: O single bonded to O, each O single bonded to one H. Each O has two lone pairs. Formal charges: each O = 0, each H = 0.
19. C₂H₆: Two C atoms single bonded, each C bonded to three H atoms. Formal charges: each C = 0, each H = 0.
20. CH₃OH: C single bonded to three H and one O; O single bonded to H. O has two lone pairs. Formal charges: all atoms = 0.
21. C₂H₄: Two C atoms double bonded, each C bonded to two H atoms. Formal charges: each C = 0, each H = 0.
22. C₄H₁₀: Four C atoms in a chain, each terminal C bonded to three H, each internal C bonded to two H. Formal charges: each C = 0, each H = 0.
23. C₂H₅OH: Two C atoms single bonded; first C bonded to three H, second C bonded to two H and one O; O bonded to H. O has two lone pairs. Formal charges: all atoms = 0.
24. ClO⁻: Cl single bonded to O, Cl has three lone pairs, O has three lone pairs and a negative charge. Formal charges: Cl = 0, O = -1.
25. H₂S₂: Two S atoms single bonded, each S bonded to one H. Each S has two lone pairs. Formal charges: each S = 0, each H = 0.
26. HNO₃: N double bonded to one O, single bonded to two O atoms. One single-bonded O is bonded to H. The O bonded to H has two lone pairs, the other single-bonded O has three lone pairs and a negative charge, double-bonded O has two lone pairs. Formal charges: N = +1, double-bonded O = 0, O bonded to H = 0, O with negative charge = -1.
27. H₂SO₄: S double bonded to two O atoms, single bonded to two OH groups. Each O in OH has two lone pairs. Formal charges: all atoms = 0.
28. CH₃NO₂: C single bonded to three H and one N; N double bonded to one O, single bonded to another O. The single-bonded O has three lone pairs and a negative charge, double-bonded O has two lone pairs. N has no lone pairs. Formal charges: C = 0, H = 0, N = +1, double-bonded O = 0, single-bonded O = -1.
29. C₂H₂: Two C atoms triple bonded, each C bonded to one H. Formal charges: each C = 0, each H = 0.
30. ClO₂⁻: Cl single bonded to two O atoms. Each O has three lone pairs and a negative charge. Cl has two lone pairs. Formal charges: Cl = +1, each O = -1.
31. PO₄³⁻: P single bonded to four O atoms. Each O has three lone pairs and a negative charge. Formal charges: P = 0, each O = -1.
32. CO: C triple bonded to O, C has one lone pair, O has one lone pair. Formal charges: C = -1, O = +1.
33. CO₂: C double bonded to two O atoms. Each O has two lone pairs. Formal charges: C = 0, each O = 0.
Parent Tip: Review the logic above to help your child master the concept of lewis dot structure practice worksheet.
