### Understanding Brønsted Acids

1. **Definition of Brønsted Acid**: A Brønsted acid is defined as a substance that can donate a proton (H⁺) to another substance during a chemical reaction.

2. **Options Analysis**:
- **a. reductant**: A reductant is a substance that donates electrons in a redox reaction, not protons.
- **b. proton donor**: This is consistent with the definition of a Brønsted acid, as it specifically donates protons.
- **c. proton acceptor**: This refers to a Brønsted base, which accepts protons, not donates them.
- **d. oxidant**: An oxidant is a substance that gains electrons in a redox reaction.

### Final Answer
The correct answer is **b. proton donor**.

Question

### Understanding Brønsted Acids

1. **Definition of Brønsted Acid**: A Brønsted acid is defined as a substance that can donate a proton (H⁺) to another substance during a chemical reaction.

2. **Options Analysis**:
   - **a. reductant**: A reductant is a substance that donates electrons in a redox reaction, not protons.
   - **b. proton donor**: This is consistent with the definition of a Brønsted acid, as it specifically donates protons.
   - **c. proton acceptor**: This refers to a Brønsted base, which accepts protons, not donates them.
   - **d. oxidant**: An oxidant is a substance that gains electrons in a redox reaction.

### Final Answer
The correct answer is **b. proton donor**.

Knowee AI · Accepted Answer

### Understanding Brønsted Acids

1. **Definition of Brønsted Acid**: A Brønsted acid is defined as a substance that can donate a proton (H⁺) to another substance during a chemical reaction.

2. **Options Analysis**:
   - **a. reductant**: A reductant is a substance that donates electrons in a redox reaction, not protons.
   - **b. proton donor**: This is consistent with the definition of a Brønsted acid, as it specifically donates protons.
   - **c. proton acceptor**: This refers to a Brønsted base, which accepts protons, not donates them.
   - **d. oxidant**: An oxidant is a substance that gains electrons in a redox reaction.

### Final Answer
The correct answer is **b. proton donor**.

A BrØnsted acid is a …Question 6Answera.reductantb.proton donorc.proton acceptord.oxidant

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A BrØnsted acid is a …

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Understanding Brønsted Acids

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