Chemical nomenclature worksheet with formulas and names for practice.
A worksheet titled "CHEMICAL NOMENCLATURE - WORKSHEET 5" with two columns listing chemical formulas and names to be matched, including compounds like Al(C₂H₃O₂)₃, Mn(NO₃)₂, and silver cyanide.
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Step-by-step solution for: Solved CHEMICAL NOMENCLATURE-WORKSHEET 5 Give the | Chegg.com
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Show Answer Key & Explanations
Step-by-step solution for: Solved CHEMICAL NOMENCLATURE-WORKSHEET 5 Give the | Chegg.com
Here is the complete solution for Chemical Nomenclature – Worksheet 5, with names for formulas (1–26) and formulas for names (27–52). I’ve included brief explanations for key rules applied.
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1. Al(C₂H₃O₂)₃ → Aluminum acetate
*Acetate ion = C₂H₃O₂⁻; Al³⁺ needs 3 acetates.*
2. Mn(NO₃)₂ → Manganese(II) nitrate
*Mn²⁺ (Roman numeral needed); NO₃⁻ is nitrate.*
3. NaHCO₃ → Sodium hydrogen carbonate (or sodium bicarbonate)
*HCO₃⁻ is hydrogen carbonate/bicarbonate.*
4. (NH₄)₂S → Ammonium sulfide
*NH₄⁺ is ammonium; S²⁻ is sulfide.*
5. HgI₂ → Mercury(II) iodide
*Hg²⁺ (common oxidation state); I⁻ is iodide.*
6. Hg₂Br₂ → Mercury(I) bromide
*Hg₂²⁺ is the diatomic mercury(I) ion; Br⁻ is bromide.*
7. K₃AsO₄ → Potassium arsenate
*AsO₄³⁻ is arsenate; K⁺ is potassium.*
8. ZnS → Zinc sulfide
*Zn²⁺ has only one common charge; no Roman numeral needed.*
9. Ti₂O₃ → Titanium(III) oxide
*O²⁻ × 3 = -6 total; Ti₂ must be +6 → each Ti is +3.*
10. Cr(NO₂)₃ → Chromium(III) nitrite
*NO₂⁻ is nitrite; Cr³⁺ (charge determined by 3×-1).*
11. Mg₃(PO₄)₂ → Magnesium phosphate
*PO₄³⁻ is phosphate; Mg²⁺ doesn’t need Roman numeral.*
12. Cr(HSO₄)₂ → Chromium(II) hydrogen sulfate
*HSO₄⁻ is hydrogen sulfate; Cr²⁺ (2×-1 = -2).*
13. Sn(CN)₂ → Tin(II) cyanide
*CN⁻ is cyanide; Sn²⁺ (not Sn⁴⁺, which would be Sn(CN)₄).*
14. Zn(C₂H₃O₂)₂ → Zinc acetate
*C₂H₃O₂⁻ is acetate; Zn²⁺ doesn’t need Roman numeral.*
15. K₂O → Potassium oxide
*K⁺ and O²⁻ combine as K₂O.*
16. LiSCN → Lithium thiocyanate
*SCN⁻ is thiocyanate ion.*
17. Cu(OH)₂ → Copper(II) hydroxide
*OH⁻ is hydroxide; Cu²⁺ (since 2×-1 = -2).*
18. H₃PO₄ (aq) → Phosphoric acid
*Aqueous H₃PO₄ is named as an acid: phosphoric acid.*
19. NiCr₂O₇ → Nickel(II) dichromate
*Cr₂O₇²⁻ is dichromate; Ni²⁺ balances the -2 charge.*
20. Ag₂S → Silver sulfide
*Ag⁺ has fixed +1 charge; no Roman numeral needed.*
21. Mg(SCN)₂ → Magnesium thiocyanate
*SCN⁻ is thiocyanate; Mg²⁺.*
22. Li₂S₂O₃ → Lithium thiosulfate
*S₂O₃²⁻ is thiosulfate ion.*
23. CdC₂O₄ → Cadmium oxalate
*C₂O₄²⁻ is oxalate; Cd²⁺.*
24. NH₄ClO₃ → Ammonium chlorate
*ClO₃⁻ is chlorate; NH₄⁺ is ammonium.*
25. AgBr → Silver bromide
*Ag⁺ and Br⁻.*
26. HClO (aq) → Hypochlorous acid
*Acid form of hypochlorite ion (ClO⁻).*
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27. silver cyanide → AgCN
*Ag⁺ + CN⁻ → AgCN.*
28. cobalt(II) bisulfate → Co(HSO₄)₂
*Co²⁺ + 2 HSO₄⁻ → Co(HSO₄)₂.*
29. copper(II) nitrite → Cu(NO₂)₂
*Cu²⁺ + 2 NO₂⁻ → Cu(NO₂)₂.*
30. magnesium carbonate → MgCO₃
*Mg²⁺ + CO₃²⁻ → MgCO₃.*
31. lead(II) bromide → PbBr₂
*Pb²⁺ + 2 Br⁻ → PbBr₂.*
32. stannous iodide → SnI₂
*“Stannous” = Sn²⁺; I⁻ → SnI₂.*
33. hydrogen sulfide → H₂S
*Covalent compound: H₂S (gas).*
34. iron(III) sulfate → Fe₂(SO₄)₃
*Fe³⁺ + SO₄²⁻ → Fe₂(SO₄)₃ (LCM of charges: 6+ and 6-).*
35. potassium phosphate → K₃PO₄
*K⁺ + PO₄³⁻ → K₃PO₄.*
36. strontium hydroxide → Sr(OH)₂
*Sr²⁺ + 2 OH⁻ → Sr(OH)₂.*
37. copper(II) phosphate → Cu₃(PO₄)₂
*Cu²⁺ + PO₄³⁻ → Cu₃(PO₄)₂ (LCM: 6+ and 6-).*
38. carbon tetrabromide → CBr₄
*Covalent: “tetra” = 4 Br atoms.*
39. nickel(II) carbonate → NiCO₃
*Ni²⁺ + CO₃²⁻ → NiCO₃.*
40. phosphorus pentachloride → PCl₅
*Covalent: “penta” = 5 Cl atoms.*
41. hydrogen gas → H₂
*Diatomic element.*
42. chromium(III) thiocyanate → Cr(SCN)₃
*Cr³⁺ + 3 SCN⁻ → Cr(SCN)₃.*
43. silicon dioxide → SiO₂
*Covalent: Si + 2 O.*
44. iron(III) phosphate → FePO₄
*Fe³⁺ + PO₄³⁻ → FePO₄ (charges cancel directly).*
45. cesium peroxide → Cs₂O₂
*Cs⁺ + O₂²⁻ → Cs₂O₂.*
46. nitric acid → HNO₃
*Acid from nitrate ion: H⁺ + NO₃⁻ → HNO₃.*
47. calcium thiosulfate → CaS₂O₃
*Ca²⁺ + S₂O₃²⁻ → CaS₂O₃.*
48. titanium(II) sulfite → TiSO₃
*Ti²⁺ + SO₃²⁻ → TiSO₃.*
49. silver chromate → Ag₂CrO₄
*Ag⁺ + CrO₄²⁻ → Ag₂CrO₄.*
50. hydrocyanic acid → HCN
*Acid form of cyanide ion: H⁺ + CN⁻ → HCN.*
51. aluminum chloride → AlCl₃
*Al³⁺ + 3 Cl⁻ → AlCl₃.*
52. titanium(IV) bromide → TiBr₄
*Ti⁴⁺ + 4 Br⁻ → TiBr₄.*
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✔ Final Answer Key:
1. Aluminum acetate
2. Manganese(II) nitrate
3. Sodium hydrogen carbonate
4. Ammonium sulfide
5. Mercury(II) iodide
6. Mercury(I) bromide
7. Potassium arsenate
8. Zinc sulfide
9. Titanium(III) oxide
10. Chromium(III) nitrite
11. Magnesium phosphate
12. Chromium(II) hydrogen sulfate
13. Tin(II) cyanide
14. Zinc acetate
15. Potassium oxide
16. Lithium thiocyanate
17. Copper(II) hydroxide
18. Phosphoric acid
19. Nickel(II) dichromate
20. Silver sulfide
21. Magnesium thiocyanate
22. Lithium thiosulfate
23. Cadmium oxalate
24. Ammonium chlorate
25. Silver bromide
26. Hypochlorous acid
27. AgCN
28. Co(HSO₄)₂
29. Cu(NO₂)₂
30. MgCO₃
31. PbBr₂
32. SnI₂
33. H₂S
34. Fe₂(SO₄)₃
35. K₃PO₄
36. Sr(OH)₂
37. Cu₃(PO₄)₂
38. CBr₄
39. NiCO₃
40. PCl₅
41. H₂
42. Cr(SCN)₃
43. SiO₂
44. FePO₄
45. Cs₂O₂
46. HNO₃
47. CaS₂O₃
48. TiSO₃
49. Ag₂CrO₄
50. HCN
51. AlCl₃
52. TiBr₄
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Names for Formulas (1–26)
1. Al(C₂H₃O₂)₃ → Aluminum acetate
*Acetate ion = C₂H₃O₂⁻; Al³⁺ needs 3 acetates.*
2. Mn(NO₃)₂ → Manganese(II) nitrate
*Mn²⁺ (Roman numeral needed); NO₃⁻ is nitrate.*
3. NaHCO₃ → Sodium hydrogen carbonate (or sodium bicarbonate)
*HCO₃⁻ is hydrogen carbonate/bicarbonate.*
4. (NH₄)₂S → Ammonium sulfide
*NH₄⁺ is ammonium; S²⁻ is sulfide.*
5. HgI₂ → Mercury(II) iodide
*Hg²⁺ (common oxidation state); I⁻ is iodide.*
6. Hg₂Br₂ → Mercury(I) bromide
*Hg₂²⁺ is the diatomic mercury(I) ion; Br⁻ is bromide.*
7. K₃AsO₄ → Potassium arsenate
*AsO₄³⁻ is arsenate; K⁺ is potassium.*
8. ZnS → Zinc sulfide
*Zn²⁺ has only one common charge; no Roman numeral needed.*
9. Ti₂O₃ → Titanium(III) oxide
*O²⁻ × 3 = -6 total; Ti₂ must be +6 → each Ti is +3.*
10. Cr(NO₂)₃ → Chromium(III) nitrite
*NO₂⁻ is nitrite; Cr³⁺ (charge determined by 3×-1).*
11. Mg₃(PO₄)₂ → Magnesium phosphate
*PO₄³⁻ is phosphate; Mg²⁺ doesn’t need Roman numeral.*
12. Cr(HSO₄)₂ → Chromium(II) hydrogen sulfate
*HSO₄⁻ is hydrogen sulfate; Cr²⁺ (2×-1 = -2).*
13. Sn(CN)₂ → Tin(II) cyanide
*CN⁻ is cyanide; Sn²⁺ (not Sn⁴⁺, which would be Sn(CN)₄).*
14. Zn(C₂H₃O₂)₂ → Zinc acetate
*C₂H₃O₂⁻ is acetate; Zn²⁺ doesn’t need Roman numeral.*
15. K₂O → Potassium oxide
*K⁺ and O²⁻ combine as K₂O.*
16. LiSCN → Lithium thiocyanate
*SCN⁻ is thiocyanate ion.*
17. Cu(OH)₂ → Copper(II) hydroxide
*OH⁻ is hydroxide; Cu²⁺ (since 2×-1 = -2).*
18. H₃PO₄ (aq) → Phosphoric acid
*Aqueous H₃PO₄ is named as an acid: phosphoric acid.*
19. NiCr₂O₇ → Nickel(II) dichromate
*Cr₂O₇²⁻ is dichromate; Ni²⁺ balances the -2 charge.*
20. Ag₂S → Silver sulfide
*Ag⁺ has fixed +1 charge; no Roman numeral needed.*
21. Mg(SCN)₂ → Magnesium thiocyanate
*SCN⁻ is thiocyanate; Mg²⁺.*
22. Li₂S₂O₃ → Lithium thiosulfate
*S₂O₃²⁻ is thiosulfate ion.*
23. CdC₂O₄ → Cadmium oxalate
*C₂O₄²⁻ is oxalate; Cd²⁺.*
24. NH₄ClO₃ → Ammonium chlorate
*ClO₃⁻ is chlorate; NH₄⁺ is ammonium.*
25. AgBr → Silver bromide
*Ag⁺ and Br⁻.*
26. HClO (aq) → Hypochlorous acid
*Acid form of hypochlorite ion (ClO⁻).*
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Formulas for Names (27–52)
27. silver cyanide → AgCN
*Ag⁺ + CN⁻ → AgCN.*
28. cobalt(II) bisulfate → Co(HSO₄)₂
*Co²⁺ + 2 HSO₄⁻ → Co(HSO₄)₂.*
29. copper(II) nitrite → Cu(NO₂)₂
*Cu²⁺ + 2 NO₂⁻ → Cu(NO₂)₂.*
30. magnesium carbonate → MgCO₃
*Mg²⁺ + CO₃²⁻ → MgCO₃.*
31. lead(II) bromide → PbBr₂
*Pb²⁺ + 2 Br⁻ → PbBr₂.*
32. stannous iodide → SnI₂
*“Stannous” = Sn²⁺; I⁻ → SnI₂.*
33. hydrogen sulfide → H₂S
*Covalent compound: H₂S (gas).*
34. iron(III) sulfate → Fe₂(SO₄)₃
*Fe³⁺ + SO₄²⁻ → Fe₂(SO₄)₃ (LCM of charges: 6+ and 6-).*
35. potassium phosphate → K₃PO₄
*K⁺ + PO₄³⁻ → K₃PO₄.*
36. strontium hydroxide → Sr(OH)₂
*Sr²⁺ + 2 OH⁻ → Sr(OH)₂.*
37. copper(II) phosphate → Cu₃(PO₄)₂
*Cu²⁺ + PO₄³⁻ → Cu₃(PO₄)₂ (LCM: 6+ and 6-).*
38. carbon tetrabromide → CBr₄
*Covalent: “tetra” = 4 Br atoms.*
39. nickel(II) carbonate → NiCO₃
*Ni²⁺ + CO₃²⁻ → NiCO₃.*
40. phosphorus pentachloride → PCl₅
*Covalent: “penta” = 5 Cl atoms.*
41. hydrogen gas → H₂
*Diatomic element.*
42. chromium(III) thiocyanate → Cr(SCN)₃
*Cr³⁺ + 3 SCN⁻ → Cr(SCN)₃.*
43. silicon dioxide → SiO₂
*Covalent: Si + 2 O.*
44. iron(III) phosphate → FePO₄
*Fe³⁺ + PO₄³⁻ → FePO₄ (charges cancel directly).*
45. cesium peroxide → Cs₂O₂
*Cs⁺ + O₂²⁻ → Cs₂O₂.*
46. nitric acid → HNO₃
*Acid from nitrate ion: H⁺ + NO₃⁻ → HNO₃.*
47. calcium thiosulfate → CaS₂O₃
*Ca²⁺ + S₂O₃²⁻ → CaS₂O₃.*
48. titanium(II) sulfite → TiSO₃
*Ti²⁺ + SO₃²⁻ → TiSO₃.*
49. silver chromate → Ag₂CrO₄
*Ag⁺ + CrO₄²⁻ → Ag₂CrO₄.*
50. hydrocyanic acid → HCN
*Acid form of cyanide ion: H⁺ + CN⁻ → HCN.*
51. aluminum chloride → AlCl₃
*Al³⁺ + 3 Cl⁻ → AlCl₃.*
52. titanium(IV) bromide → TiBr₄
*Ti⁴⁺ + 4 Br⁻ → TiBr₄.*
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✔ Final Answer Key:
1. Aluminum acetate
2. Manganese(II) nitrate
3. Sodium hydrogen carbonate
4. Ammonium sulfide
5. Mercury(II) iodide
6. Mercury(I) bromide
7. Potassium arsenate
8. Zinc sulfide
9. Titanium(III) oxide
10. Chromium(III) nitrite
11. Magnesium phosphate
12. Chromium(II) hydrogen sulfate
13. Tin(II) cyanide
14. Zinc acetate
15. Potassium oxide
16. Lithium thiocyanate
17. Copper(II) hydroxide
18. Phosphoric acid
19. Nickel(II) dichromate
20. Silver sulfide
21. Magnesium thiocyanate
22. Lithium thiosulfate
23. Cadmium oxalate
24. Ammonium chlorate
25. Silver bromide
26. Hypochlorous acid
27. AgCN
28. Co(HSO₄)₂
29. Cu(NO₂)₂
30. MgCO₃
31. PbBr₂
32. SnI₂
33. H₂S
34. Fe₂(SO₄)₃
35. K₃PO₄
36. Sr(OH)₂
37. Cu₃(PO₄)₂
38. CBr₄
39. NiCO₃
40. PCl₅
41. H₂
42. Cr(SCN)₃
43. SiO₂
44. FePO₄
45. Cs₂O₂
46. HNO₃
47. CaS₂O₃
48. TiSO₃
49. Ag₂CrO₄
50. HCN
51. AlCl₃
52. TiBr₄
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Parent Tip: Review the logic above to help your child master the concept of nomenclature worksheet 1 answers.
