Question

The first reaction bubbled because a _______ was formed.
A gas
B liquid
C solid
The yellow color seen in the second reaction was due to the presence of a solid known as a _______.
A substrate
B precipitate
Changes in color and temperature indicate that a ________ reaction has taken place.
A chemical
B physical
Skip to navigation
© Progress Learning 2026, All Rights Reserved.
Terms(opens in new tab)
|
Privacy(opens in new tab)
PHONE [phone]
|
FAX [phone]
Blog(opens in new tab)

Answer 1

1. A — gas
2. B — precipitate
3. A — chemical