In a science lab, Cash mixes two clear liquids together in a beaker. Bubbles are produced, and a white solid forms and settles to the bottom. He plans to heat the beaker over low heat and make more observations. Which statement is most likely correct?
Answer
A
A chemical change occurred, so even if Cash heats it, the white solid will remain.
B
A physical change occurred, so even if Cash heats it, the white solid will remain.
C
A chemical change occurred, so if Cash heats it, the white solid will dissolve to form the original mixture of clear liquids.
D
A physical change occurred, so if Cash heats it, the white solid will dissolve to form the original mixture of clear liquids.
Explanation
Bubbles and a new white solid forming are signs that the liquids reacted and produced new substances, so a chemical change occurred. Simply heating the beaker is not expected to turn those products back into the original clear liquids. Thus, the most likely statement is that the white solid will remain; choice A is correct.
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