Barium carbonate is alan

Options

A. compound
B. mixture
C. element
D. alloy

Answer

To determine the classification of barium carbonate, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Chemical Formula**:
- The chemical formula for barium carbonate is \( \text{BaCO}_3 \).

2. **Break Down the Components**:
- In the formula \( \text{BaCO}_3 \), we can identify the elements present:
- Barium (Ba)
- Carbon (C)
- Oxygen (O)

3. **Determine the Nature of the Substance**:
- A **compound** is defined as a substance that consists of two or more different elements that are chemically bonded together.
- A **mixture** consists of two or more substances that are physically combined but not chemically bonded.
- An **element** is a pure substance that cannot be broken down into simpler substances by chemical means.
- An **alloy** is a mixture of two or more metals.

4. **Analyze the Composition**:
- Since barium carbonate contains three different elements (barium, carbon, and oxygen) that are chemically bonded together, it qualifies as a compound.

5. **Conclusion**:
- Therefore, the correct classification of barium carbonate is **option A: compound**.

### Final Answer:
Barium carbonate is a compound.