Covalent and ionic bonds worksheet - Free Printable

Let's solve this step-by-step. The task is to:

1. Name each compound based on its chemical formula.
2. Determine whether the compound is ionic (I) or covalent (C).

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🔹 Rules for Determining Ionic vs Covalent:

- Ionic compounds: Typically form between a metal and a nonmetal.
- Covalent compounds: Form between two nonmetals.

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Now, let's go through each compound:

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1. ZnSO₄

- Name: Zinc sulfate
- Zn²⁺ is zinc ion; SO₄²⁻ is sulfate ion.
- Type: Ionic
- Zn (zinc) is a metal; SO₄ (sulfate) is a polyatomic ion (nonmetal-based).
- ✔ Answer: *Zinc sulfate* — I

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2. NF₃

- Name: Nitrogen trifluoride
- Both N and F are nonmetals.
- Type: Covalent
- Bonding between two nonmetals.
- ✔ Answer: *Nitrogen trifluoride* — C

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3. Al₂O₃

- Name: Aluminum oxide
- Al is a metal; O is a nonmetal.
- Type: Ionic
- Metal + nonmetal → ionic bond.
- ✔ Answer: *Aluminum oxide* — I

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4. CO₂

- Name: Carbon dioxide
- C and O are both nonmetals.
- Type: Covalent
- Two nonmetals sharing electrons.
- ✔ Answer: *Carbon dioxide* — C

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5. CCl₄

- Name: Carbon tetrachloride
- C and Cl are both nonmetals.
- Type: Covalent
- ✔ Answer: *Carbon tetrachloride* — C

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6. K₂CO₃

- Name: Potassium carbonate
- K is a metal; CO₃²⁻ is a polyatomic ion (carbonate).
- Type: Ionic
- Metal + polyatomic ion → ionic compound.
- ✔ Answer: *Potassium carbonate* — I

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7. CS₂

- Name: Carbon disulfide
- C and S are both nonmetals.
- Type: Covalent
- ✔ Answer: *Carbon disulfide* — C

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8. Ca₃N₂

- Name: Calcium nitride
- Ca is a metal; N is a nonmetal.
- Type: Ionic
- ✔ Answer: *Calcium nitride* — I

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9. AlPO₄

- Name: Aluminum phosphate
- Al is a metal; PO₄³⁻ is a polyatomic ion (phosphate).
- Type: Ionic
- ✔ Answer: *Aluminum phosphate* — I

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10. P₂O₃

- Name: Diphosphorus trioxide
- P and O are both nonmetals.
- Type: Covalent
- ✔ Answer: *Diphosphorus trioxide* — C

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✔ Final Answer Table:

| # | Compound | Name | I or C |
|---|--------------|------------------------|--------|
| 1 | ZnSO₄ | Zinc sulfate | I |
| 2 | NF₃ | Nitrogen trifluoride | C |
| 3 | Al₂O₃ | Aluminum oxide | I |
| 4 | CO₂ | Carbon dioxide | C |
| 5 | CCl₄ | Carbon tetrachloride | C |
| 6 | K₂CO₃ | Potassium carbonate | I |
| 7 | CS₂ | Carbon disulfide | C |
| 8 | Ca₃N₂ | Calcium nitride | I |
| 9 | AlPO₄ | Aluminum phosphate | I |
|10 | P₂O₃ | Diphosphorus trioxide | C |

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📝 Summary:

- Ionic compounds: Metals with nonmetals or polyatomic ions.
- Covalent compounds: Nonmetal + nonmetal.

Let me know if you'd like a printable version or explanation of naming rules!