Please answer the following question: Q: Where can you find sodium acetate? Read this paragraph and choose the correct option from the provided answers: In the picture above, a thermal pack is applied to the back. Small packs can be used either for heating or cooling, depending on the material used. A heat pack contains a supersaturated solution of material such as sodium acetate. The solution is clear until a small metal trigger is activated. The sodium acetate then crystallizes out of solution and generates heat in the process. Choices: - table salt - baking soda - a cold pack - a heat pack A:
Answer:
a heat pack