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Which is a sign that a chemical change is occurring????

a: boiling
b:bubbling
c:freezing
d:melting

User Ppt
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2 Answers

24 votes
24 votes

Answer:

B.) Bubbling

Step-by-step explanation:

The usual signs of a chemical change are color changes, the formation of a precipitate, the formation of a gas, an odor change, and temperature changes. Bubbles are an example of a formation of gas.

User Nzifnab
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19 votes
19 votes

Answer:

B. Bubbling

Step-by-step explanation:

The formation of bubbles are gas fumes, which are new products. The rest are only physical changes.

User ThinkingInBits
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