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yaroslaw [1]
3 years ago
11

Your teacher is performing an experiment in the lab. She takes a test tube

Biology
1 answer:
pishuonlain [190]3 years ago
4 0

Answer:

a. bubbles formed

Explanation:

Bubbles are a sign of gaseous molecules escaping, meaning that something has forced molecules to break apart and escape. A chemical reaction involves any change that directly impacts the molecular formation of a substance.

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