The new substances formed during a chemical reaction are called

Options

A. reactants
B. products
C. molecules
D. atoms

Explanation

To answer the question "The new substances formed during a chemical reaction are called," we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Chemical Reactions**:
- In a chemical reaction, substances undergo changes to form new substances.

2. **Identifying Terms**:
- The substances that are present before the chemical reaction occurs are known as **reactants**.
- The substances that are produced as a result of the chemical reaction are known as **products**.

3. **Analyzing the Options**:
- Option A: Reactant - This refers to the starting materials, not the new substances.
- Option B: Product - This refers to the new substances formed during the reaction.
- Option C: Molecule - This is a general term for two or more atoms bonded together, not specifically related to chemical reactions.
- Option D: Atom - This is the smallest unit of matter and does not refer to new substances formed in a reaction.

4. **Conclusion**:
- Based on the definitions and the options provided, the correct answer is **Option B: Product**.

### Final Answer:
The new substances formed during a chemical reaction are called **products**.

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