Calamine, malachite, magnetite and cryolite, respectively, are

Options

A. `ZnCO_3 , Cu_2CO_3(OH)_2 , Fe_3 O_4 , Na_3 AlF_6`
B. `ZnCO_3, CuCO_3, Fe_2 O_3, Na_3 AlF_6`
C. `ZnSO_4 , CuCO_3, Fe_2 O_3, AlF_3`
D. `ZnCO_3, CuCO_3Cu(OH)_3, Fe_3 O_4, Na_3 AlF_6`

Explanation

To solve the question regarding the formulas of Calamine, Malachite, Magnetite, and Cryolite, we will follow these steps:

### Step 1: Identify the ores and their corresponding formulas
1. **Calamine**: This is an ore of zinc. The chemical formula for Calamine is **ZnCO3** (Zinc Carbonate).

2. **Malachite**: This is an ore of copper. The chemical formula for Malachite is **CuCO3·Cu(OH)2** (Copper Carbonate Hydroxide). It can also be represented as **Cu2CO3(OH)2** to show that there are two copper ions.

3. **Magnetite**: This is an iron ore. The chemical formula for Magnetite is **Fe3O4** (Iron(II,III) oxide).

4. **Cryolite**: This is a mineral used in the production of aluminum. The chemical formula for Cryolite is **Na3AlF6** (Sodium Aluminum Fluoride).

### Step 2: Compile the results
Now that we have identified the formulas for each ore, we can summarize them as follows:
- Calamine: **ZnCO3**
- Malachite: **CuCO3·Cu(OH)2** or **Cu2CO3(OH)2**
- Magnetite: **Fe3O4**
- Cryolite: **Na3AlF6**

### Step 3: Verify the options
If there are multiple-choice options provided, we would check each option against our identified formulas to determine which one correctly matches all four ores.

### Final Answer
The correct formulas for Calamine, Malachite, Magnetite, and Cryolite are:
- Calamine: ZnCO3
- Malachite: CuCO3·Cu(OH)2
- Magnetite: Fe3O4
- Cryolite: Na3AlF6

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