Chemistry worksheet designed to help students practice converting between chemical names and their corresponding formulas.

Let's solve this Chemical Formula Worksheet step by step. The task is to:

- In the first two columns, write the correct chemical formula for the given name.
- In the last two columns, write the correct name for the given formula.

We’ll go through each row and fill in the missing information based on chemical nomenclature rules.

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🔹 Part 1: Name → Formula

| Name | Formula |
|------|--------|
| Magnesium Fluoride | MgF₂ |
| Lithium Chloride | LiCl |
| Calcium Chloride | CaCl₂ |
| Copper (I) Iodide | CuI |
| Potassium Bromide | KBr |
| Aluminum Oxide | Al₂O₃ |
| Iron(II) Oxide | FeO |
| Aluminum Sulfide | Al₂S₃ |
| Sodium Chloride | NaCl |
| Barium Chloride | BaCl₂ |
| Sodium Acetate | NaC₂H₃O₂ |
| Iron (III) Sulfate | Fe₂(SO₄)₃ |
| Iron (III) Sulfide | Fe₂S₃ |
| Sodium Hydroxide | NaOH |
| Ammonium Bromide | NH₄Br |
| Potassium Sulfate | K₂SO₄ |
| Sulfuric Acid | H₂SO₄ |
| Barium Chlorate | Ba(ClO₃)₂ |
| Potassium Nitrate | KNO₃ |
| Ammonium Phosphate | (NH₄)₃PO₄ |
| Hydrogen Hydroxide | H₂O (Note: This is water, but technically "hydrogen hydroxide" is not standard; it's just H₂O.) |
| Calcium Chlorate | Ca(ClO₃)₂ |
| Copper (II) Nitrate | Cu(NO₃)₂ |
| Ammonium Chloride | NH₄Cl |

> ✔ Explanation:
> - Use charges to balance ions.
> - For transition metals with Roman numerals (e.g., Fe²⁺ or Fe³⁺), use the charge indicated.
> - Polyatomic ions like sulfate (SO₄²⁻), nitrate (NO₃⁻), acetate (C₂H₃O₂⁻), etc., are memorized.
> - For acids: H₂SO₄ is sulfuric acid.

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🔹 Part 2: Formula → Name

| Formula | Name |
|--------|------|
| CaF₂ | Calcium Fluoride |
| KBr | Potassium Bromide |
| CuCl | Copper(I) Chloride |
| CuCl₂ | Copper(II) Chloride |
| CuO | Copper(II) Oxide |
| AlCl₃ | Aluminum Chloride |
| AgCl | Silver Chloride |
| MgI₂ | Magnesium Iodide |
| NaBr | Sodium Bromide |
| ZnCl₂ | Zinc Chloride |
| FeS | Iron(II) Sulfide |
| I₂F | Iodine Monofluoride *(Note: Unusual; likely typo? But I₂F isn't common. Could be IF or IF₃. However, as written, it’s I₂F – but this is not a stable compound. More likely intended as IF or IF₅. But assuming it's correct, we name it as Iodine Monofluoride if it were IF. But I₂F is not standard. Let's assume it's a typo and should be IF or IF₃. But since it's written as I₂F, perhaps it's diiodine monofluoride — rare. We'll go with I₂F → Diiodine Monofluoride.)* |
| PbO₂ | Lead(IV) Oxide |
| AgNO₃ | Silver Nitrate |
| NaCO₃ | ✘ Incorrect! Should be Na₂CO₃ → Sodium Carbonate |
| (NH₄)₂SO₄ | Ammonium Sulfate |
| KNO₃ | Potassium Nitrate |
| NaC₂H₃O₂ | Sodium Acetate |
| MgCO₃ | Magnesium Carbonate |
| Al(C₂H₃O₂)₃ | Aluminum Acetate |
| Fe(NO₃)₃ | Iron(III) Nitrate |
| CaCO₃ | Calcium Carbonate |
| CaSO₄·2H₂O | Calcium Sulfate Dihydrate |
| Sr(OH)₂ | Strontium Hydroxide |

> ⚠️ Note: NaCO₃ is incorrect. Sodium carbonate is Na₂CO₃ because CO₃²⁻ requires two Na⁺ ions. So, NaCO₃ is invalid. Likely a typo.

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✔ Final Answer Table

Here is the completed worksheet:

| Name | Formula | Formula | Name |
|------|---------|---------|------|
| Magnesium Fluoride | MgF₂ | CaF₂ | Calcium Fluoride |
| Lithium Chloride | LiCl | KBr | Potassium Bromide |
| Calcium Chloride | CaCl₂ | CuCl | Copper(I) Chloride |
| Copper (I) Iodide | CuI | CuCl₂ | Copper(II) Chloride |
| Potassium Bromide | KBr | CuO | Copper(II) Oxide |
| Aluminum Oxide | Al₂O₃ | AlCl₃ | Aluminum Chloride |
| Iron(II) Oxide | FeO | AgCl | Silver Chloride |
| Aluminum Sulfide | Al₂S₃ | MgI₂ | Magnesium Iodide |
| Sodium Chloride | NaCl | NaBr | Sodium Bromide |
| Barium Chloride | BaCl₂ | ZnCl₂ | Zinc Chloride |
| Sodium Acetate | NaC₂H₃O₂ | FeS | Iron(II) Sulfide |
| Iron (III) Sulfate | Fe₂(SO₄)₃ | I₂F | Diiodine Monofluoride *(uncommon, possibly typo)* |
| Iron (III) Sulfide | Fe₂S₃ | PbO₂ | Lead(IV) Oxide |
| Sodium Hydroxide | NaOH | AgNO₃ | Silver Nitrate |
| Ammonium Bromide | NH₄Br | NaCO₃ | ✘ Invalid (should be Na₂CO₃ → Sodium Carbonate) |
| Potassium Sulfate | K₂SO₄ | (NH₄)₂SO₄ | Ammonium Sulfate |
| Sulfuric Acid | H₂SO₄ | KNO₃ | Potassium Nitrate |
| Barium Chlorate | Ba(ClO₃)₂ | NaC₂H₃O₂ | Sodium Acetate |
| Potassium Nitrate | KNO₃ | MgCO₃ | Magnesium Carbonate |
| Ammonium Phosphate | (NH₄)₃PO₄ | Al(C₂H₃O₂)₃ | Aluminum Acetate |
| Hydrogen Hydroxide | H₂O | Fe(NO₃)₃ | Iron(III) Nitrate |
| Calcium Chlorate | Ca(ClO₃)₂ | CaCO₃ | Calcium Carbonate |
| Copper (II) Nitrate | Cu(NO₃)₂ | CaSO₄·2H₂O | Calcium Sulfate Dihydrate |
| Ammonium Chloride | NH₄Cl | Sr(OH)₂ | Strontium Hydroxide |

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🔍 Key Notes & Corrections:

1. NaCO₃ is not correct — sodium carbonate is Na₂CO₃. The formula given is invalid. Probably a typo.
2. I₂F is unusual. Standard fluorides of iodine are IF, IF₃, IF₅, IF₇. I₂F is not common. If it's meant to be IF, then it's Iodine Monofluoride. But as written, it's Diiodine Monofluoride.
3. Hydrogen Hydroxide is not a standard name. It refers to water (H₂O), as H⁺ + OH⁻ → H₂O.
4. Ammonium Phosphate is (NH₄)₃PO₄, not to be confused with ammonium phosphate salts.
5. Hydrates like CaSO₄·2H₂O are named with the prefix indicating water molecules.

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✔ Final Answer Summary:
- All formulas and names have been filled in using proper ionic charge balancing and naming conventions.
- Corrected errors (e.g., NaCO₃ → Na₂CO₃).
- Noted possible typos (e.g., I₂F).

Let me know if you'd like this in printable format or need explanations for any specific compound!