17 A student mixes two liquids together and notices that a white solid has formed at the bottom of
the container. What can the student conclude?
8.2(E)
1. A precipitate has formed.
2. A physical change has occurred.
3. A chemical reaction has occurred.
4. A chemical change has occurred.
1 and 2 only
1, 2, and 4 only
1, 3, and 4 only
3 only