The acid boiled when poured into the beaker. The acid and powder formed a new product. A physical reaction produced a gas mixture. A reaction occurred that produced heat.
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: A chemist observed bubbling and fizzing after adding an acid solution to a white powdery substance in a beaker. Which of the following can be inferred?
Possibilities:
- The acid boiled when poured into the beaker.
- The acid and powder formed a new product.
- A physical reaction produced a gas mixture.
- A reaction occurred that produced heat.

The acid and powder formed a new product.