Question

3. Which of the following events involves a chemical change?

A. A cake rises in the oven.
B. Salt is dissolved in warm water.
C. A pencil is broken into two pieces.
D. Sandy water is filtered to extract the sand from the water.

Answer 1

A. The cake rising in the oven

Answer 2

Salt is dissolved in warm water

Step-by-step explanation:

The other answers are physical changes.