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?
A B C D
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.
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?
(A) The acid boiled when poured into the beaker.
(B) The acid and powder formed a new product.
(C) A physical reaction produced a gas mixture.
(D) A reaction occurred that produced heat.

Answer: (B) The acid and powder formed a new product.
Answer: (A) The acid boiled when poured into the beaker.
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?
(A) The acid boiled when poured into the beaker.
(B) The acid and powder formed a new product.
(C) A physical reaction produced a gas mixture.
(D) A reaction occurred that produced heat.
Answer: (B) The acid and powder formed a new product.